{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1575278",
    "entityType": "User",
    "nonce": "0xda504feae7dd05f5476cd931ae3a373cd2524e4ac6e75d9b47f92ae8290ebc0c",
    "signature": "0x05e0423f999e30a5e0ebb2db9779fe5fde038dec8c93fda4cb24ac5dee0606320973bfca6221806e8652832b0d4cd6a3333a9aea7c5e69fae56158dd03fe594b1b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}