{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdf6528bce49c9ce16d6630625a96908d60868b634cc832e29f342be242527380",
    "signature": "0x88d15f345c2c383d1273d0475a10b4e4b30c49d7748654a4793487948d303b1306763845b2145b5a552bd62d40fa1383b99f8676683b959dc667b3ee9c2f9d3e1b",
    "signer": "0x6Ee7842A432b779E1Bf51F27B824fe86161cee6c",
    "userId": "408407824"
  }
}