{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "881446128",
    "entityType": "User",
    "nonce": "0x84c6a336c6a1846703217d7797cbfd2d28927b9a8f12eeca458c2a7509595c7f",
    "signature": "0xda6a72208b39914f2c01484b9e2dfb47f9d9ab058916b1a9d75606508ed4fdf90ddc71811c7f78858df439d1c9cfcc38791e26ea0cee48ebb6cd8487d49285511c",
    "signer": "0x28E33991512111134d5d0a41560151532083B312",
    "userId": "9962"
  }
}