{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "547969682",
    "entityType": "User",
    "nonce": "0x4a83a16159e7b9b7fce670488b2ee4dcc805a18cd55b450cd624451d7a7381a4",
    "signature": "0xf1671840ad22a94f935ba02fe953b25513715603e8bfe12ba9e7092ef70cc7ec203a49534b355c006cc9b462eea2de62dbda0bf9eac9e96da97a74eb033a580f1b",
    "signer": "0xd9Fa1ac44597D750006BCEd68B36a63Afa62AEfC",
    "userId": "221168944"
  }
}