{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "172280",
    "entityType": "User",
    "nonce": "0x1c87b1d463977b4aa216efc8aabd9adce836874bc23e8fd2dae52977fd6c17cd",
    "signature": "0xe59316e9b62c8bb527d02aff18b521e5ea79a4b909af3ab83e579fc6e5b5e76b3e577786799914edf114987425de05dec053f619909bbb88edc68c85c7ac5c831c",
    "signer": "0x1080460F21DCc82D7160d2C77DaAb22a92c4dD22",
    "userId": "162106877"
  }
}