{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0feabf0c7877ab4aacf8527e34d5e40f79e33d54da1375e4ce4c58f5924cf5bf",
    "signature": "0x72e8ee5f7ff0c179f91e54b6d5a02ca99cb7be007e2d50a83f3f0225ab7730884c7af4cd64fd25bdf83f595e9909345284e15a75029f9d501101a0490dd0f1ad1b",
    "signer": "0x5AbCEAe498b9A67266FF7D216A99c3eA08718757",
    "userId": "436263444"
  }
}