Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = '60204af09d9032a8795bfd175d6b857bb8c350e289574eb6db8a5bc1a2d8920f' 
  AND token = 'Mqn8FUFCP5IcyGV7URJhiPBGIBpFiVa29cs0sjImemc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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