{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "355113",
    "entityType": "User",
    "nonce": "0x100dd03dcc8d92ccb109c085edd9a46d106b58394210623f9b8168fc4b511f68",
    "signature": "0x75331489895fa8a661be133af44fd7c095285816126d3f302cc67f3cc2f9a1654b1bb4f968e06fa7d9dddb4b565005154354a002fee3b5f252078e5825db17971b",
    "signer": "0x6b89eeF406A3D10E08768E85967dB17cf7EaCd03",
    "userId": "125044"
  }
}