Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6e100b7c2d0c74b16b0f21c0ab0ab350c5058ab7c35bf3c8a7a4567701870a9a' 
  AND token = 'p+BvBANrLqJHDEhCq8pZROsk/ECjfUHxjlDNTZ3hmww=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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