{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "877833051",
    "entityType": "User",
    "nonce": "0xfeb965cc3ea3b015779e59047dab9d622e9e2eb4f56c0d8325267832261c17aa",
    "signature": "0x1bfb80c8aa894240579d26de00c9e8c7ddc225765f934c3ce37aba5c9e9289e627f36197ea4ca56a9fe335b0593f3a7219dab4dad20a98c3ebe934f9bf4e10551b",
    "signer": "0x9FA029c6E43fD9781215e024e9ae5802602Ed2Db",
    "userId": "738673571"
  }
}