{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "298267",
    "entityType": "User",
    "nonce": "0xe35df659b6024ed1a0c397c72ca99d5c90b74fc18bbf8ca6f3a2b1c7855de2bc",
    "signature": "0x5ef6931bf4c68ad1dcbb0f5f5481754615eaaf48ffb7788c84d46fa84f36ff5f23730ed7c187cfe66a0d8f83175c625cdae38fea2c3e82e218ee9ee2bba2e53a1b",
    "signer": "0x1ABf6DD41fe1E6b1C2d3A69859a25C92caa31b32",
    "userId": "17689"
  }
}