{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x985964dfb0b8f035caffe64174309ac35be3d23cd90fd6c12772b93a633deec8",
    "signature": "0x6e312ab34b97e36c8e32bc3ac029c031b060a23b86df1d2a938d7f20a60a048169d3e451699c59f34cfd566eaaabbae5514ce422a158a1fe9c4f52e14381750b1c",
    "signer": "0xF552De26E4C120C00F9BCFE3c7aA56067cbD6c6f",
    "userId": "45443814"
  }
}