{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "762470",
    "entityType": "User",
    "nonce": "0xf403ce1fa7695f6c95eb7cc5e60da1d4b0ef5bb43604618d3979bbd8d15d0a70",
    "signature": "0xd0938db8dad94f4e35a7436c23153f016b99c10795358f0d5729794e8665819c5ddfc248875b219e1f858511646f72e3bc3d1501f200149aa671ea1a35f94e051c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}