{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x2e5b999a80d7cab5bdb66730e42d1bb3e00c03a62883c62474df1a3b334b0f0b",
    "signature": "0xaf37f2cba881aaa7610e5d85fd2d0f9a3f6caa400babe78a563c881786c0062c3a602dd78ef7ee52166121664843f08f57558a6077c2441221ee8082f20e02191b",
    "signer": "0x9d5d1f1a59bB255396F7F1e7DeB307A4F66f15ec",
    "userId": "429311703"
  }
}