{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "348435",
    "entityType": "User",
    "nonce": "0x38f2e68232eca716b911fdaa3af05dc9d551d0328cc620ef172c12d15ff35fcc",
    "signature": "0x67c9cf26f147bacc36615acdb64c5615a73886ec5294d234aea8dfef758c43056e16f969385a604360a5379d8dd6d0720ab902baa5838dc522481bdb40a2d6861b",
    "signer": "0x8D46758848B46fD16d027970035C88c708E03e3d",
    "userId": "870591918"
  }
}