{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x3f92369081e8f50a9f082d9f8f96bd7d13cbf0f11344704ef0249f7244aea9da",
    "signature": "0x8859b53d1226ae25b4ce81cb326326e386b91df189cb99175c6b5d20aaed5f93404247927bd5dec497eba5042ad077e07eb321631c1de819d18871032ba5017e1c",
    "signer": "0x4C413aA16AB0452da796Af095ae4D4C4B82F5f32",
    "userId": "44882442"
  }
}