{
  "manageEntity": {
    "action": "Update",
    "entityId": "349615045",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa1e838b857078687581e24810df6e9817128d6e8ad577d8459dcb8c78382acf0",
    "signature": "0xd185b70e22af869818931966ef5e5366a65fb305ff22189143e096a71f670d0f7cde47a3e919f921852735ac65b2a810d8518a2a14f918239da6501947d8c6751c",
    "signer": "0x0f0E9a5D73d16eAb27e96E6180f9C85A3bF5Ccaa",
    "userId": "349615045"
  }
}