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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'dc08f29a87741546d8bfa1a525baea0ffeaf120f6952fa76a308ea5495df0bbb' 
  AND token = 'PKBIY1oYPZJDmDyu8PT75yVgmiPg94j3Bdbb14SzuUM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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