Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '101317a12b9feadb95a551d2353f8b8ac851c952d2159d06beab9d81f7e31d10' 
  AND token = '7H1NuvboYdwWiQT8EFq4xN0+O5C7jvRfoP3g3ap4U0k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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