Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '927037542972cc91294e8d7dfea2e119fb00c91ae38d9d566d05e16526a3b9b1' 
  AND token = 'H2TT6khBNcvqhCdWKrzToQoCU79QFFpbDOvEcu/rSMk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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