{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x465c43071fe2bcaab771c67929aaa4bf1c8bb0ad9bf4c418a5ea0a7bfdb9e3fc",
    "signature": "0xd1a0c8db482be3b26b4e2731047752aa937525d019ecfc021b8fa65c3cd0bb7431f29e60662c870caecbf5730f1fc613eb75d0e273f58ae1dbe9308fd74284cc1b",
    "signer": "0x4592844E37Dfd554b54A3B4B3ab9E150055Ca869",
    "userId": "865894040"
  }
}