{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "210794",
    "entityType": "User",
    "nonce": "0x80da2ef502921fa5f3221da49cf0b5105778ba8c5594d10ddb7075d62e6dd405",
    "signature": "0x23a3e432905f260b319fc1c391e9437253e894b7ae561b22898b44c14b65d4e1603a4a69a8264914fa12aea10f21237142b4fd6192eebdfcd148b42d44ab00d41b",
    "signer": "0x2Df83D15c880275a0138820cE2009Fc85eF32C65",
    "userId": "107618708"
  }
}