{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "19236",
    "entityType": "User",
    "nonce": "0x1595823fcd439ed59d2c742d22710f00952a027164df10464214fd5b42144fac",
    "signature": "0x51342a823e3afacf6017bc16f1cfb3b51e70f68649250932cf53c50bf6bd69232286dddc17e6eced2ac9a1e2fe4a419c2ef45c088539a8791832216fadb06ba31b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}