{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "158343",
    "entityType": "User",
    "nonce": "0xdc0e58fdd16a4d2963f1d6e30001ae97b37e0bc31ebe4879425d37a5d9cfa963",
    "signature": "0xf6dc68153a65a029ac2ce77a145a8f6683b694004393cb7a133f34ee850119f00d30af305bf5f6dd71e7be92f822de918bc5a9c3a32f12dbb0aeb711e9c5a17c1c",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}