{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8402c106984994a90142a584b376573ae88d9900efdb2c9ea3ca6e3d8130297a",
    "signature": "0xd19c1310c6f645be82a4846f8999d71b756097c90002f9b442ee15b0a90528e9675acb5d36879443c18726b93a6a0c2e37e8b2308f96b7d7d612a2d04491ce5e1b",
    "signer": "0x2A0702822360AbAC0a8A4703C1104EEa313BFE20",
    "userId": "720140593"
  }
}