Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '58aa9272102001090ec9d69c05d2f34f190299bf5dcefc089ea4f7e449fa2e6f' 
  AND token = 'EQm5lAavRNAXmDBdA5STbkUwrx5Qn3ipb+P8cV+qrTI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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