Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'bd5ec2a04158a49d1ea322692d04c646471a6972a220088292d8cb00579a7c51' 
  AND token = 'GfXIPunpW+iheWOSLlYFnBWiAfK0Cu4Hrv5qX87eOb4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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