{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "341554118",
    "entityType": "User",
    "nonce": "0x094bfa938c3359238a53a44e28591ad781a4362065cf6388df36c3c9580d3465",
    "signature": "0x67800008631fc802d8b9182a6be2a2d0a06379669ec66cbad66a80549e6e150a698fd0f4dd5e6c340284ac1db62bfe7607ac12886d20848b9433bcbb2092c5a71c",
    "signer": "0xc589f8874AD8E6Bf29601BAF2a6D05aBa6f804CE",
    "userId": "296557064"
  }
}