{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0x18a743d5f667a8fd05b050b69a6678184bc90c9df604ac8bfbb1b4248c252f62",
    "signature": "0x51d004d5d1427dbd0ba782eef3082d07d17cd9dfbc2bce1ebc3ba000a9cfca8e763e26f0741874ebb7131374ed6965e4d0622d1affd335f18acfad6597d7309e1c",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}