{
  "manageEntity": {
    "action": "Update",
    "entityId": "660426069",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x45bae064ddbfaa769ae89147c3efa4bcbcc6fc5d1bf8d6732c69c8b690e90f72",
    "signature": "0x095af6946a08d8006f85fcc9af004b2edeaa2a014ec9155bfd98a224ee2524aa7d2cf8232c219d591b29fa0ba4ab2b5de31576a295b13ae040b96a865945f2ed1b",
    "signer": "0xD445c54cF3F27bf05Bfe252E386817E24ADDeA57",
    "userId": "660426069"
  }
}