{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "283478",
    "entityType": "User",
    "nonce": "0x3ccbfb83eff507a32f4bb801b6500e927da0ebeb53d15b2a45fcfcee4d6970d7",
    "signature": "0xf3829eb806a3134f38dab56f9b252bec0517e9103dd6973d3d6d7547aaa6d3133453cc748f7e70f62e9ffd2a10cf474007d5849cc43e82cc08d8d28fde4805c51c",
    "signer": "0x5abad058d33E1C0C0A69d85BA3181678C1721765",
    "userId": "632918751"
  }
}