{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "389177",
    "entityType": "User",
    "nonce": "0x0de944af0fb6859455bc5ca5c70113b8de84b9319cc24370fbe67ffb9f312863",
    "signature": "0xcbe6d9fc525334b95fc75db38044b63c99b8bc99d98007c8b39f96d0efd0640c4ec153b3d8846092b6c7a3fdcc4a53763e9585817ccffed4f8aa0876b14f998b1c",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}