{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9fab3c8db07f8be674aa6af5be34336dbd2e887d001ddfcf0fce11cc84a08e01",
    "signature": "0xbd1de02e47b4e90764ebd1ad5a2ea252233fd77d18ea87da1542f03b1623c8cc649ff0199b9fed7a1c284e75e3ee57b5a32d49e236076a41cbbbf1b94e73593d1b",
    "signer": "0xd9011A4c8b6b483C738Dc550649bA234f5834Cf8",
    "userId": "8127565"
  }
}