{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50737590",
    "entityType": "User",
    "nonce": "0x3734ab52c9e149aa312a4080934e35969dc8b2aaa257d38623a4d41627a92acd",
    "signature": "0x8266a784637cd145305b0165426e27eb87123412c4117cce989ff0726afb1041174111b771386dce24bf9707ff587112e1ca1911ef3a19462c6397c916163f291b",
    "signer": "0x94d1769762bc3a1e7DCd3e8a31C89Ff199833Da6",
    "userId": "715573876"
  }
}