{
  "manageEntity": {
    "action": "Update",
    "entityId": "103534989",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf5a5f3efbae8c6e83a7e5390c2d056f85e1bf20a0b642983cb97e882ae258f5e",
    "signature": "0xb2146ddf138b83159021d707239fca85ad2be3e0e2106a17c3ba10aa5a2f084742dd394c7f0b124b19b87520d43bde126c9cf58bfce9f374b09b3ba5d71aa0a71c",
    "signer": "0xF6d7F4477a02a1b5D3fA0991F1af9807e510Aa93",
    "userId": "103534989"
  }
}