{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x214f875908e918e22e312bda94ee17e98f2fe3484cba92b61b7d3c6f01a0a116",
    "signature": "0xb6f09b6a227eda95e843e67330b9e1fa8e51830088da42b9e05ab9c75e315182333bc8c7393d9f27e30f5d4af7e3c47e404ece9667a931f20283e293c5c99fcb1b",
    "signer": "0x157bA741aDDB5162C2E1E91761E3Acbe4Fa13078",
    "userId": "942998397"
  }
}