{
  "manageEntity": {
    "action": "Update",
    "entityId": "780838336",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x15919579ddec319503ddff81aa3cf00e2fe8954419340f2c7abc71c86e33ecc3",
    "signature": "0xff14db49a3315bf3545c373fff66d23e5c37c2079b6fea7c3d1a7194b844313c7beadc6d3397a1435c9e4019f70bad43cc12f91917055414e25c4333a0f35aac1b",
    "signer": "0x1F8d00A05AB04Ea8AFEb3B1C72de612c9fF456bD",
    "userId": "780838336"
  }
}