{
  "manageEntity": {
    "action": "Update",
    "entityId": "928301477",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1f86d91be53353bf55093fa2f8f1c54e542af585d8aa2f0f7063724be9328d00",
    "signature": "0x8326b45c4905c4f34186babf2ea82c9302e586c46cfc7cf505bf6654aa8f0f41550fe037801858e2f5751ae56e7c6d7865c26f90f93d3deae968078bace02a3c1b",
    "signer": "0x1F3aea6Ad99A4c8cBF2DE7047740F7D3E4e0730b",
    "userId": "928301477"
  }
}