{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "409129",
    "entityType": "User",
    "nonce": "0x1287d054bd8990b3d9e314e0edd3380b370f4b84e4ad0b3b4de5f0b0697e8ad9",
    "signature": "0xe314360d8965df4f8ba3b944be106f4c14db0d9ab9593fb3cb3022a1361fdbbf3ad9b2cfe2ae8503f2688242130e0ef9ecd434c6437af3f5ce83356b2d8fcf101b",
    "signer": "0xD967b68365738013c9197659aAb46EB73a488080",
    "userId": "488430169"
  }
}