{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77214",
    "entityType": "User",
    "nonce": "0x9f67b7099b817d18104702b9176a5b80d42334f47a31c571325d3dbb7b3cd08e",
    "signature": "0x538309beb6543bf6a9504f378b618a1677b981b4e5c544cdd0a631002f81312f03fb5902c14ab08c1cb099f80ad87a850e155720d3ad015d06e83da6552416191b",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}