{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "975661020",
    "entityType": "User",
    "nonce": "0xb09587afad26383ae74ae0d500ae4133752406dff40466d8575f4552e43be208",
    "signature": "0xee67bbdd124685d95d4d78a256e94c45ca839b9acef0dae9ea9e9b9989842e201aa71072a45fa0b0a3167df0666143e560295863766343e4ec9834105fd53daf1c",
    "signer": "0x4f1EC54982df71ffaEF3B1187812dc2e0e398b14",
    "userId": "346345309"
  }
}