{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "358394",
    "entityType": "User",
    "nonce": "0x7b7da240c23565113b782ed3c6a149828f157bf723393124fef27fcff1eaef87",
    "signature": "0x77674887d36812327eaaeed7ef18a10ff3d8a0ee8bb24bcf5e6f8a2169bf09d825f7c741c7b9069f27dbf9a1ed4be56fbc2e1ce3b0cef4b9e867f6bd104cbe9b1b",
    "signer": "0x4ad870a0C318214b4796d1464BC8Dc57C6b84C12",
    "userId": "408505072"
  }
}