{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1480340",
    "entityType": "User",
    "nonce": "0x21b74ae58413f50c9111a161ee3c46c974e14df6f327ed24d08daf6ea7260931",
    "signature": "0x31f5aa9d4088c664c553349f44063a8aaf656eb3355a7e8ee549aa4d1abdac6113490b9925aff66bf25a7d9bf9f1934d6885143f9b87492e89aeda716c4a2bb01c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}