Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'd205c59a84f56aebc46dd6368e4687c1dd0907a56b599867aad09d337f37019d' 
  AND token = 'XRJoFFbrvu7Ao1OD0KXbGDoVlgnuxO34Ff3vn5ar0ek=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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