{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "285555253",
    "entityType": "User",
    "nonce": "0x033c9810839c3ccb50b0777c245bc4f1e94ab1d1ea13898a9154d3f393866213",
    "signature": "0x39a3e51b7f9dc7711b9e07d9947fc51ecf59fafd6c013d6b23cedd9ae4d00615389119650a8262f49d9d26d3e42c8673dca613e50a18cabceb2067af545deaeb1b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}