{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "311257477",
    "entityType": "User",
    "nonce": "0x43af5154302e9b3226b3fe9c85ba0ae48209a0c7521d61ad74f778b61b4e0788",
    "signature": "0x578d72cc4a1c1c12cac94c7c12672aca3b528fbd3bd390096b3c76ef6b538ad824ae7c64e5edb352e86cd45910fb9a2b4df257d87fd1c807cb071dac61ad12dd1b",
    "signer": "0x9BaE2e1849D39772019b4AC3468e938a232f73ee",
    "userId": "948584098"
  }
}