Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7de5b077cedc75228bf15781927d8c23863a0de00f593b5f8d608aedfa07092d' 
  AND token = 'SpPzzMQODEOLmrRKAvo+Z0S3PkKEvoCEaloEnf67pVs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00049

JSON explain

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