{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe8c0e7397a9b7c2f7ff3e6289ae2d9647ea2e5ac7b10bcbd16a7b12700fbaede",
    "signature": "0x4b733ec2a9c5ed190120bc8222af0b555b30c2b6907a48720e461252e03085c31cc1e797d2224acd56cf89f976f36769ee3b4a6f6972388a8be4351a819d7ecd1b",
    "signer": "0xDd650ad29b8c77eC14a1D110731773571713459A",
    "userId": "179478096"
  }
}