{
  "manageEntity": {
    "action": "Update",
    "entityId": "52664772",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x304324f64dc05b7b6507406c3a42a0a4ab2505ad47030e5f801cf8f792cfe844",
    "signature": "0x54ba679f4b58881ad02e37039f521b038c71d27d9923611abd7fc5832e54f61152f4428c7c6b1487fbfb02b9169f2be147a577118579638773dd11ec5e48c4161c",
    "signer": "0xEe85D3B01F3A7c280EA9b31Cf9121e93d57B9dd0",
    "userId": "52664772"
  }
}