{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2515",
    "entityType": "User",
    "nonce": "0x58e2a8aa4c36b59db97076e8274007946f7c517d96e9df80c250bfa18344731a",
    "signature": "0x856ab66cb1fbc272e3d30788c67d6e403a5a4bc0f0b86a1bcc016a21b5853f22033c705a5ae6ce4a34f635775ed9beea178ac6bf19992c5b96e69cdbf43ab37a1b",
    "signer": "0xF7628Ea36C0C266E289b7538b033fB949A6C31ff",
    "userId": "386745392"
  }
}