Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'aacb63c27f99e24851803ff8826ef44595c246c559726f981e7d2a5a2a0e3431' 
  AND token = 'EmOSfD4MqQ3DCVeKmPlMcmf9vtS1UYL3Xw9DhaoFdaU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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