{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "291109",
    "entityType": "User",
    "nonce": "0x72463db3bb489c65c7c3eb310231532cfcac8f6fecf0563d7e5d486eb302d58d",
    "signature": "0x5764f453b956c1099a90c88b6c5154b8e94c3314394e0ca6d42a7d2f1a654dd17b10d856b42eb06fb3218c4c4faa083f142a57ca8c7dd9527af738b0bb6bfc0c1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}