{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "150500",
    "entityType": "User",
    "nonce": "0xf0d271294fbcba74de4d6b2bd96212dfce65e88c82e5cf5189fe550c6adf8d83",
    "signature": "0x26acd0b30f70d00158d3990a9b9794516ea9da562d1a0a0aac359ca000fca7b807c8e5e1bb5362fcc685d51578e784957d7388fe67340e77b2feee1c504a4eab1c",
    "signer": "0xC35123bF05ca0B3A7B333c53E47bcd9f9DA864d4",
    "userId": "33896318"
  }
}