{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "323527",
    "entityType": "User",
    "nonce": "0xb7eb078a8ba49fd0929f7bb10b046faf6bb1a0ebd7baeac21520d819930aaae4",
    "signature": "0x355d06b956c19a815069ccfb8c2dad2f2d85ee761c1744e3a7385415f522d5c1692a34bc0b4e57599e8a9532945c027b357a77083162e8f1d485c7da3b12295b1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}