{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "840432946",
    "entityType": "User",
    "nonce": "0x475bba0e7d58c06af55207effdaed9262ab0d5dca48a9fc7815b44b685a2bb70",
    "signature": "0xb5dc351676567937cccc28959fec8db03f749ef453cb48563093435c7819696922381576297d406f937c7a5b8a628013bdc962701b157c198a16f0e521cde1bd1b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}