{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "905219052",
    "entityType": "User",
    "nonce": "0x3dd441fd267d88610b0fa197679d438e116ea732b711360fccc583477030ba5c",
    "signature": "0xbe278828455a37421d28125c0973092725304508575329126d30f943332e93f33ddbc2c8d386ff2e8f911b0fb17559678b24b1bbf4854d441a418c8643663bc01c",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}