{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xce49f688982315c236d5747322022c7dc77f9607d52b9a6dad3b913cdeb5897d",
    "signature": "0x8434219ea828c63144a198ef3287882fead73a15888137fb5e2c80ab7eba66ad7899febf169ece4e0f170cfa29ca0f20be740b7eab60e83b8bdb6ee9528b03271b",
    "signer": "0xFf3201A7dd0F709163B34F121Ca470026514a73B",
    "userId": "681461791"
  }
}