{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "87128",
    "entityType": "User",
    "nonce": "0x09d98637c06069f89be0f9e8d770dd4d534001b7a93ea688200009c0a705b62a",
    "signature": "0xee647dfd63a35e253548b7efe5bb9c7ff95d4a4c0b8671091a4c49b0bbc14dcc0d141b3c40be6e76b501a452cd43d64cb8ecf7fc742bc224dd31eab4f7306c351b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}