Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '11079ba957bb137cf8609b7e32a68269ef0de7c117f832986f7dd8b2b3e23aed' 
  AND token = 'hL6Y664H5hAosx32ftVtO6tFv2EDAndqCCQX85zPdqY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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