{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951571009",
    "entityType": "User",
    "nonce": "0x903cae645489481d192e6838c54055644017dd8cee7e8a0d2c62c37ddce1c49a",
    "signature": "0xb5af1962dcefe5328c24169d74db54ee40f623dc96aada1cc81bbfaa31b7bd2177342b4b48deb2f690f2c356ae8b385199761707b5e7116f6b40b30d438ec6221b",
    "signer": "0xcd864e8A0A043bf1B2DA4106C35c1daF234468a5",
    "userId": "784246910"
  }
}