{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "66916",
    "entityType": "User",
    "nonce": "0xe071824c364e063365c244b2beeee9fd3d415938f4bb6e6c16311cb35254c646",
    "signature": "0xba57f7ec33463f87959f9f8a37d846b9c1e01e01d204adba87c0345d728f237b51f5eb8f5be27c6f5dce0a62a5b183e91881b585fa9aa41b0bb010ff57efe8441b",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}