{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "255240433",
    "entityType": "User",
    "nonce": "0x95e43d68edf154fd42aef8508f8542405286918bf3db9df97260f6e6a7df7245",
    "signature": "0xebafa03374980b5ad43412a0001737a88b96851b3d8e3ce28df9777841e99d6414f6fdfd1c832d2e8c0bf90554e42d57c885466b1784f044570cac20c26cc4c01b",
    "signer": "0x854c4A8686DBF9495A2D65244b72C4A0c30628d9",
    "userId": "920432305"
  }
}