{
  "manageEntity": {
    "action": "Update",
    "entityId": "530432949",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraduazbjlcpfu3fq2tc6qkcrnqxmpmhd6flh6rfeclwbqbvtpart4q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":252015425},{\"type\":\"playlist\",\"playlist_id\":30682}]}}}",
    "nonce": "0xc7de106fd458fbb52bad936b2797bfc05d8d57c0ea78cd9f1c4b83f9e94cd68c",
    "signature": "0xad0983589e4e13f4d33520a3e88a63109e713e6e8555c599623d69c1580cf5d05768ee011e33d3eb248a0a34e1081c05d61e903a2fd6698d07bcf7a919fbc4431c",
    "signer": "0x03216709b3C72cC48C8Cbd8E8100689b00Dc5b63",
    "userId": "530432949"
  }
}