{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x98bdbaa54b7955d6018c16322072e011a6715979b995aa5f4ab75403dda8fbe1",
    "signature": "0xdf9e6272d364569d7bd4408fc9feaab1f1f87a65697df7f6896f650aab50705068fcc2028bb80b57c7fb37d6f8e113031d14c12d855832c504214a0d8e34b6c61c",
    "signer": "0x1Aa01c3B92ac91B734FD825c16CDfb6a745B1cE7",
    "userId": "217574494"
  }
}