{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "666092734",
    "entityType": "User",
    "nonce": "0xefe11ed71043303c310865cb78ad15b7803fc4678213a8f537d3afa6a9615f61",
    "signature": "0x70fc6e2605bc68564c3617da96ce274d83c451f6d9f78dc0b366d7c1b0f66340306083d3d855713ed7b0e026887e7d62d8c9574cbdea4b5752406cf8d9f44ff71b",
    "signer": "0xCedE64dcD8b0FdEDBdADF4b0ba433797eD6301c9",
    "userId": "638733607"
  }
}