{
  "manageEntity": {
    "action": "Update",
    "entityId": "323265976",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x340a96765b29ea5ca4fdbeb168dfc34d0557379483773548865688dd95749b5c",
    "signature": "0x6121639c91b5f8dd269710a9dd431154895c26a3a3a327f3b38cb33b86146fd7119f447cb5e81b6805fc9a33763d4555a1386c315a4df2f4032d98a8bc576a031b",
    "signer": "0xca67B756dF6DC4484E074c869eD66e40B3c83E34",
    "userId": "323265976"
  }
}