{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "56354",
    "entityType": "User",
    "nonce": "0x4f43e8483d99e7cb5d8184df06ff1cad5b94195c74344fa845cddf8837703247",
    "signature": "0xebe55292e255a09684a84d17db65c49fe823710d6d6c0ca8be00dee70efecc30797012c8fcd6ead6899a6986e261fa7d998da8e090b213d28a3900b3d33cdffe1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}