Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '54e0263846bf472448f76d56f31d87fc729817d572d450fd43c028fee977d152' 
  AND token = 'ZcgJbNui6qIi4W8EQpOimG2V3A3PCT+dHsBZ+Mbjgjs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00047

JSON explain

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