{
  "manageEntity": {
    "action": "Update",
    "entityId": "12593245",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x78b9c96d918d190e68378be11910ede5b5be670e764ddad4d96a4da00d5191a6",
    "signature": "0x4072b374d6e51305523d0b832c8cc5fa12ad46d004aec0071f7495a8a8f33adb40657998ff86669e37df6d6960c54a73fe5816b7af280b0614c73b1fb7e382e51b",
    "signer": "0x40B1E2e8DD54db8aAFaacf81A7ae13394E412374",
    "userId": "12593245"
  }
}