{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134649",
    "entityType": "User",
    "nonce": "0x665b4ab4364ce57cb3d8d5b3d34f8ffb7ace8f58645df7c54255e1da3a5077d7",
    "signature": "0xe88e093bd12eab53c2ac9f74f7e45f1923885f660d1b99886c0088c4490247aa40aa9f49622a8e22522f19ebabf3d1ee69b7556b1312700eb0c709ca5045ee691c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}