{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "702572",
    "entityType": "User",
    "nonce": "0x43e2bb21e6ebf07cb16318aa4ec54d3d78b5008d3722601b59de397db25ef150",
    "signature": "0x04a86d01f9d6fbd3145912956bdc2ac41961075cead2376d2dc89178978027bc7e1bc2f2249ca9ed60011c61dd7b0b7eb83c40674c826703ca8f94d51b5536db1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}