{
  "manageEntity": {
    "action": "Update",
    "entityId": "875379357",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0ba8a09461d01039cf7278d943f6e7b8db4312e2114f2b23f7e3714cf3d5cbdf",
    "signature": "0xd6b3350f69881959eb87f91eb37b0953ba33f262205706285031d1b9c2faead22121ca718fb044e86c9b2187cd2abb52a038a3ea4db9746def8dda91c0e912501c",
    "signer": "0x7433EF98d41FA8dAa715B6AAB0F4d3225927B98f",
    "userId": "875379357"
  }
}