{
  "manageEntity": {
    "action": "Update",
    "entityId": "633494619",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x18500022981993271bad41b63766a10d874bec20d05c3f9cb66a022305b94cbc",
    "signature": "0x1f3317dee35f4d81971f5cdf0445bba7f9eb452ba0eeae267cf13aae6bf53733054ab91cc0874b5a447ad7ccca81811fcce78b1c54cf63a54d01499c6dd44f321c",
    "signer": "0x7B499405130cFEFBBaec9980A9E37BBE42E8589D",
    "userId": "633494619"
  }
}