{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "327343",
    "entityType": "User",
    "nonce": "0x1583896db9375ac0f6aa7393f919de43c942237d8857a60f2eb1dc79f4a12360",
    "signature": "0x80a01f00593bb8d9b703206cc1f316dc38e6a252e9ccfb8b87efc0c01adc0dfb29a66094610ad7a09102f29fc53bd00ea34484c1f13d1c0d82c63ea908b12c161c",
    "signer": "0x294F540CE80e30CBc9Fb7bEA94F956ABdEcdEf68",
    "userId": "809640913"
  }
}