{
  "manageEntity": {
    "action": "Update",
    "entityId": "117746616",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierafsxk5gnuplcgzii6fxznnxo7srhndgswtdkw54w5255dj7mvfwoa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":960389755}]}}}",
    "nonce": "0xaee09d5316944b4a76facb438d7f85c786bbb504bfe71f4293a584e2ff055f43",
    "signature": "0xe1853d33fb63eb1ff8ed948b77fa4ac2492c1a5c9d10c97098f801488c9cffeb0d1a3da0ffa638bba00065f61fc55d41b6be785792f22108f9ed3feaffe410dc1b",
    "signer": "0x7cBf9C818e64D0e7E0f624C52725f97CE9E2C312",
    "userId": "117746616"
  }
}