Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '046318d383fedb07689bc59f0003afc879f3486ed6bcfd77f4d615f98f5eb72f' 
  AND token = 'O8yY6MpfxZvaC6vLzZof1qlhg04rNflBgHO+p4H89Yk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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