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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5b70fd0fde33087850b8230a5077c6e829ff94427be083d30ae2ba6c87aca493' 
  AND token = 'CFS5Ul8NM4ECoHHs2kGAZ27fZ6U0uoi698uoTx5O5yU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00015

JSON explain

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