{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x283d12113c0e54f7891e6923fc25c4777ecd89e46b5827b66a4caca5f7e1580a",
    "signature": "0x77b53a5a1c12b859a01e4ce441a8dd7e1fe8fd84b4a09ce8c70a2d5c961d5cff45c6bf56af6833055b5cc1963a4d632c0e4f4a3388c9781f57a53e76192dd0c51b",
    "signer": "0xfa1f98f0530E55C2BEFA45f0F1B3A699b4559136",
    "userId": "149566028"
  }
}