{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "163391",
    "entityType": "User",
    "nonce": "0x155ba421070c96d82a5ad248ce44474502fb07657bb77be1ea832e2b62b9122d",
    "signature": "0x4073529abe43afc9b3b5a38c2aaff49ce504cf231970443b06fb918babc4d4355f65e21c43499715a0a83a605d19dbd5068a16c9117fd678589d6bb3f6107e701c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}