{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "714646433",
    "entityType": "User",
    "nonce": "0xc9ce08ba19874cecc88e6d137b0f817911545f2a211d9d30c3fc4cceda54fc41",
    "signature": "0x151e2dc9e7136f70e11bd47e0f48d3b7677a89f70401c3f58ee845b25296933b5e45a11b7e064be56bc2c593fa167267d2f95a7fe328a3ec79cb6e8e82cb3e6e1c",
    "signer": "0x44c6c9974E4028ab550E0311F9A04Df023477958",
    "userId": "152450"
  }
}