Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '813c34b064d743ed7f6b8146f0def69a8573f95d08515f1424d4fcaae4dc24c8' 
  AND token = '9+bw7wbiMNZCI90MfH+IjSXI1j9ZYkvLKU03T4B3QHI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00122

JSON explain

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