{
  "manageEntity": {
    "action": "Update",
    "entityId": "331746699",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6cd353b237987b3ed76bfefd6f7e0c04f86e790dcb5ef60360ab026c8ca629f2",
    "signature": "0xd59a574e3902627e3ce39a0bf563aa92de176f5ebff3532bac796a71157ecee57d5e46079ae2fca93d4a9b868cdd3b8ffbdaeba58a32750521b8e97311aaf88d1c",
    "signer": "0x45e305332c701ff9F86813677d8210776F3D7258",
    "userId": "331746699"
  }
}