{
  "manageEntity": {
    "action": "Update",
    "entityId": "230035127",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd030915424065c0c9738a1d75004b545e953bce8e14968678c8b04d28dfd848d",
    "signature": "0x10d21a38b4d25aa61c77ea9eb195096827beeb38dd0ddac4e951fe33c3fa12dc13eeaf11a6fa5bf8c64fe80dfa26f1ab5d0f649cfc9d853453d90146e4534a071c",
    "signer": "0xD37bFbe502C93C3571456a25d2e3856C804e9FfB",
    "userId": "230035127"
  }
}