{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "952779336",
    "entityType": "User",
    "nonce": "0x3f251c77d60133c2e1287e12a643bd50fc8770b313c88b217f769be48a6d6d8c",
    "signature": "0x0e33502c7aedaaed468e07d10f7902afead7d785c0cf440f0da298471a9ab2577b280166cac72582a38bd9bdd2820ae8ad5337971c8da36b9462d1632a79aa371b",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}