{
  "manageEntity": {
    "action": "Update",
    "entityId": "918602404",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xaa4dc48b6ffab686be3d052f87397070c32d6dbabfc22d388f4859bfdb1d502d",
    "signature": "0xdbc2eda27aca7eb3ffc42808d66564b8c1bc4fa25da9cf63bf26e6c9d0c973b93560dce9280de392a8543ba50110ada6bf955f0ef19737fcefb7360cdb62bbf71c",
    "signer": "0x9e6Bc923c3B1A420BDAF7b6dd8E4a6Bc51f0DfFC",
    "userId": "918602404"
  }
}