{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329513359",
    "entityType": "User",
    "nonce": "0x9134c3393bacf95285d84d11f945d5309a6dba16e0f6772520de76ceec471fbe",
    "signature": "0xb3aa90d1507153b8a172cdb4ed4f4ea41e84592e999b38540b03ba225919e004557864908ba8e893409e1d5b515c3dfb08ca849a760ff8e438acdca0a050a0241b",
    "signer": "0x2a14233e1f50922EA23fb817931968707B6A04c0",
    "userId": "727256442"
  }
}