Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f9a07b723bed3b0938053aa0e99ac4ae9880d44f4f2922fe3e4da69406842edf' 
  AND token = 'PcwucKwJ+WMgLJXcsQP0Jm6s9VSWehqerK9x4e89sX0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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