{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x6946d6f9adf29b8bbc497d6a06f0288f9abb17cd6a320580c9d0d652229b6d9b",
    "signature": "0xe0efd5acdb3cf3b53a8d1b6dfd34c06b7f38c231442a04e7b68506071252787728c883d5341263fafb5be3f27256e699bd1f23f0c7ddb7899afcf12af4dc85c41b",
    "signer": "0xFc088F13d4a1Ac06F16750acE28481185Dc8c881",
    "userId": "168139737"
  }
}