Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0e8b58f5eddaad455945bdd669822ed1226714e41b4ff465fccc656338b61184' 
  AND token = 'gZ4Z5hX0sriG6cW2vllN4jt5lod6m8YS/0V32HhGIlQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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