{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "218470",
    "entityType": "User",
    "nonce": "0x9a39de68298bc31aeaa258c1e50ba4f6d551197e017771c0d69e9b072c4833b7",
    "signature": "0x9368739863c9c690168f473d1a866ee62fee06b5f2e39cb9d8a495592a54bbb2096df34ddec17b908b2779d950b4ae524c05e623e6bd75e2f5163c54c18d5da31c",
    "signer": "0x46FCeb3B4CC66d5AA2A495C482D103Bf09Ef8B43",
    "userId": "577430813"
  }
}