{
  "manageEntity": {
    "action": "Update",
    "entityId": "567185258",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1471a8a2bd18ae6ec5d46ff59233fdb515f3fe0c9e579d69de1d1e4b4f63bec9",
    "signature": "0xb416eb2a3fb59d19577a2e6aab12778fb6599d559d254960948811bace6fc4064376b2bbbdfeeb429d9fb01ec3c28d056fe5fe3ab0559ef3cec44874ccbe0e221c",
    "signer": "0xF74215f47AFBB8DBFC201c3E7a8873A9303c6d41",
    "userId": "567185258"
  }
}