{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "107347200",
    "entityType": "User",
    "nonce": "0xb977f93f1c82448288536df5dd44a50c8c0d6a98f9434377c0bcb1e305a1af80",
    "signature": "0x892e272afe46136a776453f6d1fef1f2c2d05b4c1cb84855c3938a566e4257a21de21658651fdf8018cdb78c55bc3767c8d097de109c99586bae3b6fc62148191b",
    "signer": "0x67E321241D4e44e5aB5D1c365505f0F33044C7BE",
    "userId": "460631539"
  }
}