{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5506",
    "entityType": "User",
    "nonce": "0x90bb00b681b180dfde175811ce442f12b75e8df06fac93f23b3b913ac8db3ff2",
    "signature": "0x29e404e28ce2dab493ba98d34044dd6ad5543f592f48c5ea2fa16bbef29218eb3289bc42a6b29c82edfe74ce63aca68290c266e7685f4cad183ea1f81241b1fe1b",
    "signer": "0xD967b68365738013c9197659aAb46EB73a488080",
    "userId": "488430169"
  }
}