{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "61021",
    "entityType": "User",
    "nonce": "0x77ccae598a3b9e9538dfc9462efa7175994888fc92cf120e80e04dafb50cd731",
    "signature": "0xe30cc0aefaea1c7d6ed4755cfea22c66646bce0a915f43e1e1bdd4369312c4f3225a541ed12d29aab3c1125c0cb519e8bb92157ad6a6b6c929f555e63beee25a1c",
    "signer": "0x8e5A6D0829f4226DC492757b1583CBd16b7666B3",
    "userId": "582447217"
  }
}