Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '538ec44fffdf510648fe7a67ea563cf3bdf5ce4fddb1125f444fd1a9c07095df' 
  AND token = 't6RJR+EyJVMEPS1Ncm79FVUrKdUm5tkc+2tgv8hAPro=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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