{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "147561",
    "entityType": "User",
    "nonce": "0xa230a6b4633e7b06c64c8e70cbe7be56e4b95c4a62c04c0c4204e2102856d348",
    "signature": "0xbaba25338427d57a40655cc89b11dbebd01b9ea6903acdeefd8fc8ab9586bc2123278b4dc5e489316d8e6c344527a6c24b348e2e85f5834aae64657892e9c16c1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}