{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "217374",
    "entityType": "User",
    "nonce": "0xaebe45120c04f2a7e5e09d600658f05fe2f298f815b385c7c16d09ff97bcc2f3",
    "signature": "0xb5ca03de03491d0c547749345f7b0d736dd6f83ac74da2e183ddb2c8d3920aa237d1b1d35fdd9c4121d7d977f8967b3d620317c33bbe74d101494c168d65f3ca1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}