{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1876433c4b25e71ed21ae68c3aa92505279b2899e9dbeff6d5303cf512b3faac",
    "signature": "0xeedc0e8030b34ab5e735454e09eb780d1e1331932b0f1ff23cee9da754aee8b3673339d8c1faf7f5b38b8fa51b357fef5f587b293b7cb0859efe5439a827d6cf1b",
    "signer": "0xA88821804C230CaCb69f0C2d6d5a24D4d2a31ed3",
    "userId": "853312443"
  }
}