Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0af6ba5bd1a39e4363e6f9fbd2c413b4a493905b4a2fe0507004f343a379f2a5' 
  AND token = 'lCRHY7EprY4zTWvR724ePqMcBtezJDUckGpXfbFVFP4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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