{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0x137f0d7fee8bc20a7d8f73c668768fae9d4a17fe61867ffea8f0a001e32fe546",
    "signature": "0xaf9504a21c5a8006d928db783742e4e4d1a7759b368ccd0dafb8b4f9fb7e41a614644eb629cf839dde328b4a7584d867dd71d894e55fd0bd926da80eaaae792b1b",
    "signer": "0xf3eC8D1463A23CdDd8e3137d4e971DAD05FB11ea",
    "userId": "451435291"
  }
}