{
  "manageEntity": {
    "action": "Update",
    "entityId": "106774455",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4e0e0f7fca9ab763c7a37fcdd43d0a320173d3fbf78c53e5dcc7f6b7eff076e4",
    "signature": "0x067bae9648518db34df110083efb7f11463c0f1d578628c900c4e0be33d613fe53491e944f73934e74188b64f759e04efe32abd31dd079c860fdae532ffd1e6c1b",
    "signer": "0xFD2162E1F7e40bc9c5EA89625a13675C62D7388e",
    "userId": "106774455"
  }
}