Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '49b113f8e406590b6a5054d3762912cd8f2be1ac0f8381531742e9223a2124c1' 
  AND token = 'bTBXxD114qVaInTBthu5zH0raPrkMGQ9tCNd+R3VUvw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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