Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7e5f6a8a01d6b324a37344a0340adac451f0ff42309bf4e48d1829499152d81b' 
  AND token = 'zbUyXX359LIU82MW6hQsR+KuT3M7MQwZkEfPkmO5Wcg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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