{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "124312",
    "entityType": "User",
    "nonce": "0x8af5a374685a4af92f95254247c78811d946e5e5e7910667bd3b93facdbeec18",
    "signature": "0x4c82c70c32762e7b75a2beb4aab69f787a2c7dc26bdd624244ebbacf6387506674df503faea97f0c6da223b797efb7bde2875a62a68890b1da3cbdb2e3a2d2051b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}