{
  "manageEntity": {
    "action": "Update",
    "entityId": "925764851",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2c02535c822fdcfc1d780cda352748469f85c2e28c9bbf022a8b2ae8b48221da",
    "signature": "0x381197bfba0dae2c80bbc61b72d9244aed786d0b6c23eb786e7ae4e0c2a756782f18ca81f64c5c33d6bb794bf396e7c39bf688869e29828c5421f3f3858f38221b",
    "signer": "0xc744b00D2d79D452D6C0FB60b92ed9e78AD4f1b8",
    "userId": "925764851"
  }
}