{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1903988",
    "entityType": "User",
    "nonce": "0x0d8b4926a2a9a6ecbea7618897686ded8fed8d58b416f1fac26550633bc5a220",
    "signature": "0x21904fe6401cffc5c5ee57e64c8e0d108254cefb3fe5d4e6f9de0eaa60efd7c515d19976921adb0180d22a1a2f3bafdf505ce02117889b5ee0a54f816e7780d61b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}