{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0xc6d798902b17145558ac14ea57ee2d1afdef2341c36154a7e43a4d2dbf2509d8",
    "signature": "0x684ffe837ad00453502eea2976e2dc6a9c3b7291b0e9710bd2037d0ba6a325ed580ed5322d6085f63a24be8a1d8e7d3e7b9f3ca5d43e9c9d52adf56801d59e2e1b",
    "signer": "0xa603e9487Ed7C3C62E8acb85f8f32acFf5d6349b",
    "userId": "278135553"
  }
}