{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "285113781",
    "entityType": "User",
    "nonce": "0x5289bf58464f17680a7b678499a27b2740bb4843ef29e19ce261d07e25a91ed2",
    "signature": "0x1d9c4a46bf1af7461ca90f96939bced9dbfa2f1e32e7c0c78cfc9347988bf98b61936f6b07dd51be3b4f5a5a8c57239869aef7344f3d29ccd21599f07afb160d1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}