{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "405466",
    "entityType": "User",
    "nonce": "0x94794f195926f4995c4b9171d151f12941cdb05f909e228271cc2d64cb8f9f2d",
    "signature": "0x55fc8680b554bc4f7b8cbee5ae5316d29fed343c3c21142acb7ea90936e61b7a5058ace718c1c2c14e8466c3ae2b145cc0e094c5da7d0dc042e9fc43bf9e75071c",
    "signer": "0xc876F505cb8a680D38792C141903C53780bc3901",
    "userId": "384345140"
  }
}