Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '4d17150766bcb169c6b2c1ee50107e4cb284a7804222e3d034397b153383958e' 
  AND token = 'sOQizy/HJGeavT1pOKMHyRPOXFAp88LXt1ctoPapZFA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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