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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fee03a88c750e35f7ea47096472193bd9a28351ba11432a9a60dfad1f88f95fa' 
  AND token = '1ROID+VGBykV8SJX3npbt0G7N24Lo/CTH2w2Hs5pDq0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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