Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e07fad01cc1ca1979cb1466658593a9c749a78a4d68eae65b02ea09ecc457566' 
  AND token = 'D03l4teACLMzJnQk5+vyb3teNUmvel/JyD0LuJWT+EU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00047

JSON explain

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