{
  "manageEntity": {
    "action": "Update",
    "entityId": "259513372",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraycnjpn6cap6dhrgqhcia2sl545iy7vusl532bhpnjia74n3uqjxa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":29595980},{\"type\":\"playlist\",\"playlist_id\":246953637},{\"type\":\"playlist\",\"playlist_id\":1548003131}]}}}",
    "nonce": "0xfba1269980b1df1200b89486d9b104021a9ac1b92f012c72d94426e66d7b95de",
    "signature": "0x5de42425750c57298be46ce8e0719f8ee228ce75e4ba8250bca1cebc6a420d617ba37ada80c5cd7a21d33ee080f7f5b5a1d1361dc2ceee21c07a4e8dc70c120e1b",
    "signer": "0x7deF33625A39F0c82e548F69aa14Db905C001F9B",
    "userId": "259513372"
  }
}