{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "37325",
    "entityType": "User",
    "nonce": "0x725435a8d0d0c1c27a2b00aceb40cbc58882a63e310ab6751307afee991d3a36",
    "signature": "0x179ec0f12726ddd4a5ae7a198dc0f3d78f00a7798751aaf8c3f7391cb81dec895d0da47a8f77f56f6e4b621cd07450d3cb26b0f1e666b77df4c2aa492bdb4f681b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}