{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcf06230ea8d0a890b50e795cfd20b1641d50a75f5a76313c5a86f2d9eaf597d6",
    "signature": "0x55ef0a7ccb600d916c33dc796b4db36dcff14c9a53c074e7ff5bce4ca4bfa98a705a7aa145559afb0c732b195976e42892a3553b051b10dc7bb83ca8ec01937d1c",
    "signer": "0xC32e30fB29Ef0b4421f1a1A53fF0dfa8D373A292",
    "userId": "164548225"
  }
}