{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x317ab88755bdf983b1fd23511677d8d772d847482993a11505e30a838cf7369e",
    "signature": "0xf33f0ebd16263dbff1d2a49a2b5c1bc32634e563ee5b73d5c72623f8a12e898136e36ca4bf15cd98b5d6b34967881192b3b356cd81c3d058af5e8095d3cddae91c",
    "signer": "0x9d5d1f1a59bB255396F7F1e7DeB307A4F66f15ec",
    "userId": "429311703"
  }
}