Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '32856614a0152fc3492dd50331a2dcf4c8654da0cd4598cb4c95ef4d673d5bfa' 
  AND token = 'aBa2p7XtHyao61S6L7tLyAdlFn7/z29Acp6VDLvEoOs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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