{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbf5b93d445787bd5e2255fd6cc9ae88f665f945cc965c69928dcde50c5aa6ee4",
    "signature": "0x6da4ef3db2777b8642b3012a6b46229112337ef832a06cc389596d8bc3487ff07e11c70e664f849d6ccc3de119ff494bd2ef8a14e4537373b98817aac004cc8f1b",
    "signer": "0x989faEfE658E0b6dF1793197b0De4137Cb1aDD3b",
    "userId": "554920508"
  }
}