{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "13777",
    "entityType": "User",
    "nonce": "0xf53a72db737715853c8df5c59349eb378f4cbf3600cd8571cc77ab3fc89c951e",
    "signature": "0x04c390a36c9e0286e717e591bb577cc73a26c73631cd0d11f39a78a4f4110f70420e5b7289527c4af5f18086050d57f1639bdd312788d230b900092648acc9b61b",
    "signer": "0x45C682dAb9Cd8ED5e055aC2F6a860Db5F14c27C9",
    "userId": "611525840"
  }
}