Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'e03ae9c5c2a38f3624e021b6d680cd735e0bc8095243f900cb9c244da0c4da50' 
  AND token = 'fySqJZ8vAH56vIXAX0IFmR00qc7swA5KCI5l9Dy7l48=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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