{
  "manageEntity": {
    "action": "Update",
    "entityId": "740066624",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8037e930ab5390b911c1a6dcb9fd03278c988ca24d412d3b161f041e2e1b7db9",
    "signature": "0xe198caaf0f2647e87faec240cea5c64dfbd89f03bf6a9b058e6a9cfcb6f2636c32055b204d672ffcf3fb09e3cc5f3d646c9e6451b3415e862af6aaa5144a6cca1c",
    "signer": "0xedbaB5b2971F768e04CeeB07Fe8C6D0CC2d35bCa",
    "userId": "740066624"
  }
}