{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "38348634",
    "entityType": "User",
    "nonce": "0x8e54f00dd7af32dac547be278554497481b488725b7b346a524a715ea4eb503e",
    "signature": "0xeba5c7dcfcbaa0ee88a841805560f84fcb1970f03fd41f3d9536dc5f44ac1f971a23def24aed06f070e8d151a9a557b0c0eae810a93536c54f129eedc8fa9b891b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}