{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "344254",
    "entityType": "User",
    "nonce": "0x2fa0eb9221a055570b09164e03d3cd8d9ad24713ca32708657a561f8cb8d1955",
    "signature": "0xa266c16a209531fe538fb6ab140bf909cf8c4ae481e0f2d38e6d00ce041d2db115e972469f20852b4dcf2c1c3427fb098150060dce997fe71ce09dc669c5f7c11b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}