{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50424",
    "entityType": "User",
    "nonce": "0x7c988431d62a588284467a197e4633b19dfef4b5f4d95ca4146af87a24703176",
    "signature": "0xd0f9dcd1d763b7d0b25178922b4f53bcc43cc01a0e56d8041211f49a659fdae25887044906560979f440d7140a5b009afb738cecf5c220ce7d08729bcfacf1df1c",
    "signer": "0xEb97202446fA641dF1494AFDFcD92e03878D7f16",
    "userId": "103041929"
  }
}