{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "27447",
    "entityType": "User",
    "nonce": "0xfd3c0a6a58a80ee08d7577c68e57b5a5895e358a5780fc52d0462068d85b0149",
    "signature": "0xb34af610600db3f2d035ab51e0073f6d7f716904e26adb17f47252ab9b6c4c8c7e63b6edee091a78a10bc785c58c2a52deb64256f08639d04a6b5f66374564fc1b",
    "signer": "0x4950A7c498b6c214e83B79502162b7f248f9e6ed",
    "userId": "499895630"
  }
}