{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb2dfe412d53798c70460155f951051e7d12b69ecd54c9b749c7e26dca402461c",
    "signature": "0xca767501df39532000fab3774fed93a97fd77008cf81474e1a6a81a8a2a96cee60cd833ff172a5e3b9f93f7cf0d04af736e22fe392963b4bfdf40004d7d520e91c",
    "signer": "0x2ACda02e37Db2DC08f82aEFAB268F0610974bb3c",
    "userId": "416239376"
  }
}