Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ee2e271bcb051341cc4b37d0598ac79f336400ad678b8a7343953884ecbf9096' 
  AND token = '/EQQfaj8B6Dc20XcHgSN3o97c0IPi478HIn4Y0Ckf6I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00058

JSON explain

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