{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1380",
    "entityType": "User",
    "nonce": "0x470a6d3373d2a12b9a94bfe6e24d678ca9906f629e194d5c57f40f44863f5f37",
    "signature": "0x94d26aa132d321a886be4dd2d81201fbdd84bdf59e00b58247aef1e01317e26353ebed6e79c714a99cbfb67df7c45b7d2988c1f014046eed4d5f9e5375d70e821c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}