{
  "manageEntity": {
    "action": "Update",
    "entityId": "225853187",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5871adc5cfc685e1136db366421b57a8f8b67d3cf97445213350972ed699dbba",
    "signature": "0x54ed7ec249e71ebaefc90a2633ede37c46a0148cfa19d164083361c7f114074c20f56bc966fcfdf4eea2daf632b0f3c5a1bec163deb2dfbd0cd42e34ff0a33211b",
    "signer": "0xab4d5bCD8D724CfBbfE257dE9EB174c2f4673C44",
    "userId": "225853187"
  }
}