{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "156461",
    "entityType": "User",
    "nonce": "0x29b175bedcad3bf3f746dfdbd5b33b53b5b7b7d6525aa11b1949dac01b65294c",
    "signature": "0xbbd6e6e03f7a4ba77e3c7a5245b02296da551d1ba5f7440d6991e2b3d21f80346da59f26417cc6423b446152a10d07c691b846086b4f05ebf182d2e083d6b4731c",
    "signer": "0xE4EF593fb5D21ecF6B00BbBB006Eb9725F5F7a5A",
    "userId": "852971520"
  }
}