Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'e37a47bfe72668ac299d7f0ddb779847b37fcd220d1abb46e86f63d5a9abe683' 
  AND token = 'faNyBEl2Q8Cm+dGf8Bj8sr9Glxrlhonu06/qFrep9oc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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