{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "816709547",
    "entityType": "User",
    "nonce": "0xedb089fb878b10b9551c2b9c77511e4024bf0b38997413a145164bebed46c4f1",
    "signature": "0x19be14ce80c6ed9523f7c6ff19dda5dce274a36e948dafb583e59c8a4f8d48894de2d1e999d1f23e16c0b6463d41604cbeebf1a0dbcc76386f8544942d0345b01b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}