{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "345160",
    "entityType": "User",
    "nonce": "0xe611982303826ec8eb6b9a89761944f481d7f9435846e884c1949d006c12ecab",
    "signature": "0x388d0ccdc5a225fb3f7cb44623d04ffd76ee5a9f272de92fdaa61e04468ef868242a1bb687cd890e2dca9b28ff4d44a49324c64385f6c6e8322654af53965f3b1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}