{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190321",
    "entityType": "User",
    "nonce": "0x40422106998de69e479b4df59406495b42ec874d6c42405aef1c590a99d84386",
    "signature": "0x99ad1ab9b356aebeb52beae3d45c3c763afd8e378414662378708c99f84e56e638e899e6d75c5288012bc020f3212ef81c0d1f2a53d1be49fbf4b47bd0a3032d1c",
    "signer": "0x095defda4b6508123083b4C285d471d92EC2aaA3",
    "userId": "345916464"
  }
}