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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '95f6ee8ae6879c226373a85c9f7f048ceb54aa9381aafd4a41d91e5b74633f06' 
  AND token = 'cg2Kz70LcKUSxaaZLEt52CkWUmJqhJkL8Ib2nyr+/lI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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