{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa66414cbe5583fe74b228897a2b620acbb0abe78bade50486a0d061992d359e0",
    "signature": "0xc698f36b3c6274f64ed21637fc275b8894914f4f76b428d50d1c81bf47af14ed412fdba7c5e3e255bc4017954f389aefbf3bd5044524589ed7a6b80a601dfbe91c",
    "signer": "0x10d859818957Ee0a4B59de1cc8f5DDe16b607118",
    "userId": "557719484"
  }
}