{
  "manageEntity": {
    "action": "Update",
    "entityId": "660209426",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3f968af281381c5d2033f719ddd1fe39ae28d2d2c64ce5a9ed68425dfde3ddd6",
    "signature": "0xe2a3da69c9f6355582b7ada8498dfd6927dc082a1e5d162c28ba0b1ab8de7bb879032992316b746bfb7d4d59b8ce0629951836a197c07cdf29154ca89d43f53b1b",
    "signer": "0x1F6fD63727526a874dDfD265AD16C1F89B3fAFD6",
    "userId": "660209426"
  }
}