{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x81d3749abf47e97d9e08a6dc7fa8a5a917528f42e5befe2464b5c5ead9fe0657",
    "signature": "0x0bf809f6bee3a4eb365c923acf5203e7c6a8df462199e116b9e14635acb82fda5f3cb05e378540cec3999591ffe6a182299d2d48a48c0fa0266d8fe37d19e5861c",
    "signer": "0xD3e2a2Aeb739263055A5ec4484257b4927578D03",
    "userId": "117667088"
  }
}