Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd3093bb6722c32b5c5d275831847faac921e6ec9316a18af763a2d28962443b0' 
  AND token = '9FKH7hWkUjjl7zZbxDo/q2sGl5ls0UydNpwqhWRDbEM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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