{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "13645",
    "entityType": "User",
    "nonce": "0x21f9e278530fa20b7f19b713d087c72c9c2ebbee103250164dd6a3d7beedcda0",
    "signature": "0xdc84b385dab0b1e15d903ae5cb701a8de199cc05107a0ac318337339f3460ec34343cdb05cd520a1e1f31baa013c6f97996c7436fc42ceee764fcf3ae618df5d1b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}