{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64586",
    "entityType": "User",
    "nonce": "0x6a02d6be96f42de6116cbfeb62a88454c19b4df5be22a4ae5de273eda12366d6",
    "signature": "0xffe46aa1584786f6c24f54044473f707032fe6ad51b0935d50682d48a8e172a13d306013534a3748a86d59c9ba8c8cfad356c2fdd2e3e8b82adc2e007c9a2ef61c",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}