{
  "manageEntity": {
    "action": "Update",
    "entityId": "215477734",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0b734fab68ebf6ca11d4ef1540444dc3d9035d89cef37bddca5a3724e32db346",
    "signature": "0x065a6e3e59b191926855541f86ce1ed5a3a6a6a084b8febbb1b55fa9eb6c05351e074295b1b97d211ba56e68bac7a9f400be35ebd5feaf62f63e56dc09e462b11b",
    "signer": "0xFb67a263D7648dD1470c4C29E73b437EAd27972b",
    "userId": "215477734"
  }
}