{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "14492",
    "entityType": "User",
    "nonce": "0x87e1407ef5f52d64258887651d78163b2ebe08ba82e0eddf9283fd76b889352b",
    "signature": "0xfa98408e77bb34ac0ce97f56ea390ff193b6cec59abed9754adcac680006e6971cf1d098513a53cd5151a6f51a9591ec99be88809527718a6c424e19c92887911b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}