SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '04c6e961a5932883ede5e2c1e3e26bb3a46fcbc785f7d75c842765f5f9b99ead' 
  AND token = 'ZIDrhYrkZPR1xcpA/BpWwnDF98WkgmTm3PDYL2QVH1U=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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