{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf225c3d947d7d34a947e4d606450e6c6ac4c4076d537650a665be7d2257585e5",
    "signature": "0x59e4939fa307c4eedc9f2ecfaf408cfd33bc3b84379635a5d737e6de070d23da74922ecf17820311555ce516c132d6f566912a69e2be005768236f1fd1bb31c51c",
    "signer": "0x4383f6c4dA607Dc75651D8AfAB96d6bC02986aD4",
    "userId": "402833381"
  }
}