{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x80f2f81aaea2283b68cb0debb8debb7207e16472c3415281db34a317e5b9a633",
    "signature": "0x6b859ff2af16ebdf25ecbfc4486591d2e216bcc2f1d3e12f40c94d499ff5138669392d38db9901f2d390557114a4375b8a4cdd93b1c5ce720d0bda10cbe669301b",
    "signer": "0x5358D1b8617d1c62158a7a194de4471cc0fbBC79",
    "userId": "630358397"
  }
}