{
  "manageEntity": {
    "action": "Update",
    "entityId": "997247573",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe1e4efcca09301d312f778e63e86d8356636535485dc7e258e6870c603d9252f",
    "signature": "0x7a8e9063319c2114d3996b6ef0f1df8aef041244fe5da7446ce99e6ae3b57c121d29fa9a17eccb25fa554a6392f69ce6ff134ecc1e975d5806467265433e1df11c",
    "signer": "0x2B4ff1F99494256104617a57fCa72bCEfbe8a961",
    "userId": "997247573"
  }
}