{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1416242",
    "entityType": "User",
    "nonce": "0xcb73baaeb8b340a01d3009c216dba0ba2c4772e97576f8023f37b33a22f076c2",
    "signature": "0xf73964caf34cd5068a7277ef32a8303b11c280f5140401374233c3ce2b79a71c759e338a818d699e6c2ea104c089671b0bb735c58b1374526642eff395e824051c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}