{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "374065034",
    "entityType": "User",
    "nonce": "0x716b175a7fd8bced5170ea6458d67a02cd7f3f384018a49a6ab8d53da469e651",
    "signature": "0xbd46a6b3c1decaa68f1bf27362fd9739053bebdb9b06efc155b6afd9662d86c53bc3087fa62ba47e582c5f3f64fb5b127dc098d56c40576f796dfb189bf761fd1b",
    "signer": "0xE466248f391B5f99247E259e38d4f898225001e0",
    "userId": "260762194"
  }
}