{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "204489",
    "entityType": "User",
    "nonce": "0xaabfe8eb38f4bd28855ef7fd8699c526168fc7dd3d26825ac3b9a1ae487a734f",
    "signature": "0x05ba51978e59d84a471b73cd5c4f9850bb14c95d119abc1e2992ea310da818ad36ab84b8cd8c7cba1fbbb6900ea9b81cfce109c2e0ce809b24685719708c2b7a1c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}