{
  "manageEntity": {
    "action": "Update",
    "entityId": "119580",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierakdf7mn262lhpqa7qxfhs3subirdyp7dycd3mxijigwrqkgat3h7q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":40130},{\"type\":\"playlist\",\"playlist_id\":49421},{\"type\":\"playlist\",\"playlist_id\":1538455},{\"type\":\"playlist\",\"playlist_id\":853115747},{\"type\":\"playlist\",\"playlist_id\":1859478919}]}}}",
    "nonce": "0xee23740898e894b77296bd60cd24b7bc630d33eaba50077cdb5e36cd20e21760",
    "signature": "0xa2533da6e2bb97d6c43e73ce2d8dc620a63b9181a8256a46226d631ec1e9d8be7b888ec7cf464c09bd9e5d1bd00a2dce2cfff850394ffe9f5cb7c1d723c656a21b",
    "signer": "0xD6c4DfF66d368e4a5d42792C8d086897Bb720E7D",
    "userId": "119580"
  }
}