{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "736569043",
    "entityType": "User",
    "nonce": "0xf81536f439e8c5635e3a7d0110d23036d3ebbafe3b86357cf15000fb15870923",
    "signature": "0x66b4986f7b19d3fd4039d96482f1058d4c1737999e25c7d12f689395683e39656e0db7a0967c5a362e4ca1c5f7a11a2f022ee61e7146c99a57372cec9bcfdc0c1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}