{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0x3ab655192d497243ef48ed679c9123ad6e104a543cb3e2b9e90e7da383832530",
    "signature": "0xf0d3db595f60915f9bb9c798c1feb62944b4ba91a4b43c3cf0fa2a538ee5d1561127daad8b8249c5551a52f421f925ec7fbe34e9e27023dede7d00760d10923b1c",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}