{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "342094535",
    "entityType": "User",
    "nonce": "0x2e8a47a948ef388c37e98c5951df1143d3e14e0af084e0a31919822c394bc1ac",
    "signature": "0xe8efa5d45a1315cce056923570d7fc44eff78eabf001fa443b469cdf79785f5a5d48dfa11e0fafb31e04b5db52e076fc095c1e8953e7d507f24ec9932fc177841c",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}