{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "908879704",
    "entityType": "User",
    "nonce": "0xe4726aa768591b89fd4d1cac7382b766d092ed6dd6ddb4d4aa9c023d9c7490e5",
    "signature": "0xeb531eea9e478acf64d6f0ccc37e3fb338767bd22c2d69065469bf8864d01934711adab63845b87706cd16ff2b3c3b78a136559263747d41940e8e21bb49acf71c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}