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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '8b80ee8a3efe3ce137e4aad29eec22bc42182b3fd156911eaae853393831ac92' 
  AND token = '/ggmkgQUzhOc/QBqd7YNGC1nwh1NqmVDH1VcFnytDTw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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