{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7e093ecaec1c159ee29352cc7f7d4941ea0633921e77b40f3f41a22b16815333",
    "signature": "0x45db4d3a7a7a31fdfa22debf6e0349d68cd82d6acb1b54a933148721c8c1822d7c2effdeff5ec709107b01b973ffe363d0314c21d2f44fa6a209a60ded413cea1c",
    "signer": "0xC982f8B52eee7F9710Edeb184eA0a7401A3C79fC",
    "userId": "401235853"
  }
}