Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0c9048ad70cba5eaeb470be75d39f7784295ae1219777bdf262abf464b6f6060' 
  AND token = 'VUnNxTeJ6eLUoyuejUfhQNR+rH0kSWDNTInx3Mc+giQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00013

JSON explain

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