{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x221c0ecab7cc3bd2cd8ec85e2b75176d4de13aca0e8cde4269569efaedeacdea",
    "signature": "0xea60f75c433fe023a2bf3ad74e13c649bbf507a364f37815d9cefca888885eb66f81522ad3b5748e8dcac73b5db33250ceb7c3be995f609052de3e858861f7ef1b",
    "signer": "0x6BA8eBA51b39A299c7E599b2D71Bb05E3B41BbbC",
    "userId": "92695348"
  }
}