{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x685ed94b96f263bc78d176a9fcbd4d805a4bce0e8e959513f173bf44ccf4c194",
    "signature": "0x88214834b56ecea8c4ae87be478230628b37153aa5c21ed731cd50185ab294ee7d5fccfd94ff129ac45184fd2c7fd72600057a80ecc30ad0925ce83614f7ddb91c",
    "signer": "0xBB7b9E0bFE457D30F53C38EE5d7Aab163550cc05",
    "userId": "455978043"
  }
}