{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "451684863",
    "entityType": "User",
    "nonce": "0xcd4cbf627581c548bc6c0f009fb22897b61351b080eace62c19d23aecc27c015",
    "signature": "0xd06ec1f1738b8f74e78d02456487d491b0d056f2242ceac8ca56d02906eb356878698d3040aad0a31e5ba8243b6caf8b79322b18ba3d009750a17b99e3a93a691c",
    "signer": "0xd85E4A094e4C057572A9D525C9737051A17ab609",
    "userId": "696716320"
  }
}