{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203891",
    "entityType": "User",
    "nonce": "0xcad201fa5042e81db31373393662ec0530df638c474d66a22d22adde490b67a0",
    "signature": "0xc05e392fad2f8068d22ee056553831423f52a696afa894593b5c6ce124577d4c5105c244945e5bc6ee1a4cf538f8062e4fc62694c98e074a34fd14c8ff535c9d1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}