{
  "manageEntity": {
    "action": "Update",
    "entityId": "776736354",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xfe52dfec2174b8957705564b1812485cf3e35b1da4cf48be5cf1ccd4a8b616d0",
    "signature": "0xc24d52d79f3325091bed3d225ac589f06051a65259f48b179a5c8620aeb44b237d6228074a1c167237305f1c545de80788744b32f680b7987486634c1443a12f1c",
    "signer": "0x7EEbbaB8164DE4D71251bbe51e4a3f9972f05C75",
    "userId": "776736354"
  }
}