{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "735980234",
    "entityType": "User",
    "nonce": "0x2e9dd1c12fbb468395bdacbaede7347a8161cc165a8c09399807e29ac4fada9b",
    "signature": "0x39166bfe0650ca171c95bedecdf5f086305a6f7fc4a80c72e06606c33da1edab018c0106858d6c20461df3cf0b6ed3503333cd7f313c34ba8bb9ef8ed51cb3531b",
    "signer": "0x1F9dC682fadBAc94c0Dd4ca2232a3f490704a737",
    "userId": "737872723"
  }
}