{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5101",
    "entityType": "User",
    "nonce": "0x0a134bac5feab0ceca3f4e3e191c635ebf8b8bab5517ed22711c7df985e87a4e",
    "signature": "0x0384de577a61cc07de0b3f44bd69a0b752a597a5b11c57385823970622e388da077d8612a35945422edc23d0ecb1f889cd61a77a280a0cd914ed0194af1a87b41c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}