{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0xa9fe41fe6a4103fc4f6c8a899cd08404d4bcec59ccf381f03d201fcf0de8ef7e",
    "signature": "0x9e9d94a98797d4004237a5de167457d8cea9793bd9a9001fcf2891f531f58ecc6d81a3c88a4a8b30122de572a2c64ef846c6e2ade82626578793458495718e8d1c",
    "signer": "0x6F70A783fF23fE56ea47FC56eA2C0C0BDc4651A4",
    "userId": "868622360"
  }
}