{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0xc9ad77b83ccd92bf5ea5dbb658db45b082cf09241aa1aa354f7098357163bb0a",
    "signature": "0x89cc57a8617816d194e41418092b367ca99bb28328cddf86d6430e269af64f154ba18849403e00d89b47a6f59626d5298c0ee226300e4d20acf7d9e50019c9101b",
    "signer": "0xA656a2329Dc742F06e5FA85bc5c9dEC6677D646B",
    "userId": "504172897"
  }
}