Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '74ce4ac67bb213434f3b14fe9c627366554b5571602a6ea602a4fb5446d4773a' 
  AND token = 'Ye3J2KZh11L0wO4U2zSd86Ke605LIo2Ua+ejGnd+5Kw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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