Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'de30b1d956b4deea009c7ade31306a0711dfdc31ebaeadce20977437a8595fc9' 
  AND token = 'CCKNg5EXEp703Q1fRBPHTNU+0SoUxV4OYT6RGwKaN0w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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