{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1363771",
    "entityType": "User",
    "nonce": "0xe257cfb1a38fec45d69c08999d260121e85e1f0d5665942f9d57be3e233d6de1",
    "signature": "0x90fa4e04625505c1f57d65d2e0aa3dfbb3bce349066c613f49fc89a15acaba5b4db54d1b670e5c97a7923c9f3b223e662856ed3eb4c15a5dab112fe0df0816b91c",
    "signer": "0x044142FBd4AF7201d53A9BD1d822768a436d6314",
    "userId": "683311144"
  }
}