{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120328011",
    "entityType": "User",
    "nonce": "0xd9ad4868019d66d9f836b97a680c85b4fc8fb293b18f36a38f71258cc4c6f72c",
    "signature": "0x51dc6e9f040953ab31cabd1ff3f63d73243306eb99c690e25383d5923367d3c63161100b22e91deb8b4d35ba8b8c4d1abd37bc774c2178cb713184c0e3c3cf1a1b",
    "signer": "0xb7C7a8D9d12EBd1Cd438cB065E97280E6D7e912A",
    "userId": "984691913"
  }
}