{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "72075266",
    "entityType": "User",
    "nonce": "0x7d88473f8c1a67e0c1f0b829a6f7701c44ab82b4503a72d6c1608533a734cd5a",
    "signature": "0xf5c73bfe803933cafc694f4dbc5b186b6c159821549e44e9400412588af214c638f9adf4ccc18cc6ff7d5d07401458da3d61a0e346a3e2a90b671daf481dd8c01b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}