{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3279d5d760e9645aac9038d11a145db4e1c890cd369ff766d1fc0df374a3c466",
    "signature": "0x974114d946ee045277a0641aaf0e9d0fcafc843ad9cc4a928b015a51726cdc530149ab538275058075228329dd18eaf23352e5f014ee87c621a6945be6b0f6a91c",
    "signer": "0x8bd5c03298238332f393D0373090CA1b27A78DC1",
    "userId": "362760707"
  }
}