{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x2eea9abe1a87b438e3c731922ec00a06581db0e69a441942d5f60102b809730a",
    "signature": "0xcbf3a03ecf87f1fb17943c7b28cc39238bcfba63a8a31d5f0014799eca67b55a5935ea16c0c75276f032a7c564bba52f59ebb79e237936dcef2bcc4f1d60b5e51b",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}