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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '0e316b06f556c6ba755881f1e689e0b625b0084944a05253915195da06fe5a9c' 
  AND token = 'iJ0GNZtub/UQtCLlfFTfcj3TfjjrKdd9lLSuqoeeHJ0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00163

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}