{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "856473940",
    "entityType": "User",
    "nonce": "0xba586161b57041b9f9d2e5f772916be2a251652162821ab5d5ce0d9e9efe61ca",
    "signature": "0x640636695cbb8ffe96ec8d2c2d9636ebed4c9ab880c0afa0c9b40e4660953c3b610b638fd62f3e8ad458887215b6ad0f91452bd4a9b62e404145040ad164266f1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}