{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd6c20495951206e8d099684f3c6b0ec25b6c0db21c3a60d65ef43268b3c45441",
    "signature": "0xd33a475216d7547e01eb28c8029e559620930d1c1992136c3a3125b886540b6532a9ecff6cefdf77807c8a33ffdfe8942afe3de4c6280060e6bd427e374f57321b",
    "signer": "0xb4873Bd245d918fAfe43E692c1Acf602aA701410",
    "userId": "177962250"
  }
}