{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "368602",
    "entityType": "User",
    "nonce": "0xe1c5fe6655eb85fa133c5896001b12c292fa582e883a364072ca7ff0f53e3e9c",
    "signature": "0xd8d2dfe0525c1ea297c7f811d9138ff6959e2d4528473adbf511364767c36a796f552a9fa05ffcefde0ee86d5fba7c9228a0b56c55645e9c98399ea4d9f406ba1b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}