{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x0078f508f5cb5ce6bab4dc8506485adee4e8c8a75b2a6d24fed7baf01a7a2fdf",
    "signature": "0x8eb95bbb251062df5e1f99271a0eb92488263ad0b076e24aea747b2a244dfd9c1e8849393d21964cb95f172482e10dbd24a6c29d8febd39b5c3c7d09adf63f291b",
    "signer": "0xb6B208a8f79b1D88d245afa5aDB0a40d38cd6DD1",
    "userId": "528688046"
  }
}