{
  "manageEntity": {
    "action": "Update",
    "entityId": "700925850",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6398aa914de8a0bd02b852ed1db4b2833ba7da808a3227860d187b077ad5894c",
    "signature": "0x22f979d3d439a8503398ac68553d2e6c9dbd8ea6f6b4c10428291661acb3a9e723fcbe957ff3dcf85ad0e669faf0725dabc4b795fa49d367ed8eb1583046f3eb1b",
    "signer": "0x58c568208a4777caB1471C1ff6CeCD309f8b0879",
    "userId": "700925850"
  }
}