{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcbee26f681d3ec3acb37380050b7a7dbcc896ae64a6054f11fa3b83ed861c95f",
    "signature": "0x73c52f4064a8b0cd49050d5bccf51c9d6f4f47612111ce04fcc656b902e7a1604279afcb8760c8ac83f9481bb4b07ed964305d3b2855169fef2e32cda78285f81c",
    "signer": "0xd9A54F5D27953D2dCc7321618F25664424365fF3",
    "userId": "358650455"
  }
}