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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '907b26d8b8505f17547c4e5760cd7297dc25350e8865008f9b9656ff05788d8e' 
  AND token = 'RXFlpQWUHhR83s5xwHyv3GmX2ErRKr7HcLk/11nClxs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}