{
  "manageEntity": {
    "action": "Update",
    "entityId": "920952181",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xde0d319ec5df0975c82f67112aad1cdf5668814656704ae3d88a2197316981e5",
    "signature": "0x587fb67e31de58818e0eedf77480a380db2f535af60a8324f80a645677d880015189c11f579879c5dd7dd7b3350a2a4869ea581fd1b213f27c2aff8d396865221c",
    "signer": "0xf8Eb229C4E9DF1a0309047d50bDBc725Ee98A292",
    "userId": "920952181"
  }
}