{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "964966160",
    "entityType": "User",
    "nonce": "0x786d3f0c74454f678f31a0ef12e2e160ed6db7c8bd88f45b6c593cdeea67da81",
    "signature": "0x9a7ede55a736bfef53c12488f9d18ee9fe07d35207179437ea9b78080db20acb153ca5fbeac7eee8a1634ab0b002b43cd711ace72a2505154204011a17ea8b9b1b",
    "signer": "0x4F667530f7092Ee8C031321b8865575Df29b90AE",
    "userId": "88327896"
  }
}