{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "907140206",
    "entityType": "User",
    "nonce": "0x1901ded53cd5c5d738f0f2a3b8244c81b4455031b35ccb8147cc528524511f4e",
    "signature": "0x2a23ef140c8ed1725f5b17119cb2d9c285da0ad53473fc660d0581d5aa47fde46e71fc5c362ab30cff3f3aa680a2c919a9cb1ceb56ca1f6d8e1d9f483b270e421b",
    "signer": "0x0FFb102af9bEd83F1ef5aa71Bb44e1B6c455B022",
    "userId": "785050962"
  }
}