{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x6f0b0ef09f89f19ad4491b1b2dd83d8837cb937ea378dae6e69a147318ee4cc3",
    "signature": "0x2577eee66208a4f250eafc5044d2457bd1954e8fe22d7b8732db637e6b037c6120f4b1876b09915aec8ab819397c630c336b752b0662bf91735a88f45bf5fef81c",
    "signer": "0x136A4e19270387bc21d7e58a9592D46864B0Ad57",
    "userId": "956002390"
  }
}