{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28155",
    "entityType": "User",
    "nonce": "0x819f9f03b6cc1bc4b4947f92d6b550ef0415b3dae2593cd63f78606fd2018c85",
    "signature": "0xbae16db77156acce23f61d3830b913f8c5d256b39ab8528316c5ebea2bd604566c4396b91e8b1782985092816912cf0bc9077312ab453658a8c7334db8a146de1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}