Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '060efe4395d324cfbddbcbcc307a7b0d4c05d21be5efe331e9d359049b8407bd' 
  AND token = 'CgL6IWx7IMpSzzJOG4jm8QsA10zSZQY065Q+HANoJnI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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