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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '8855a07f79497c4543c687641b94e530c921fac92461178813116734bcbd8091' 
  AND token = 'uDneRWYu7BRkz9f1LEQ1MUk55ov6ZYLu1VJK8Y9XVU0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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