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SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = '17aba833382b9bd7851449c5fd2386b27507f7b5b2dea35fad5b789390426efe' 
  AND token = 'BizIUfu6l36PcQNrKuv90nyTw9NBe0591r/OBbVP3sM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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