{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "78231",
    "entityType": "User",
    "nonce": "0xee60a4a50bb797a8711f69caac1af67e9767d4cf8c9f23965402f5bc857bca8a",
    "signature": "0x919318c421dd60a6fd321a23b847123c34b9b4a8d3e611e5f05952850b7c5e987390c175e8e616b1e2ba09832a7c35863bd9e02b68338e51475b07d0a4658df81c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}