{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "258708124",
    "entityType": "User",
    "nonce": "0xfb1c67be832309a7d28d7bbe9e4731b7799e31b747d61b098b36a46a80189a00",
    "signature": "0xa9f42c85057384371bc17c4eb6970fcc3f2960066c756ce4f5b8105987b7f66d406b7a80cbfc2483d2fa780e78893b926ef655bed62baf37405a2f9acf60881e1b",
    "signer": "0xC7B16Eee24C03712c67aa884907593f4df23db87",
    "userId": "56534466"
  }
}