{
  "manageEntity": {
    "action": "Update",
    "entityId": "937736805",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdb9d30044d76adc4950cbd5fab37929325548a0bf2d14dfd3f252f59c1cf8dd3",
    "signature": "0x877022c9d50962a716463b133eec3a77301f71aa893f3bc94b2b2c317d34b92f10cf2d9b165e761d15fb46ada70462eea5c212d8014a796ee1427adfd8da30a81c",
    "signer": "0x8d215A9Bd160287762B58da5798Ff7b71F5ab228",
    "userId": "937736805"
  }
}