{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "340028952",
    "entityType": "User",
    "nonce": "0x1e2e9e7c293d9f4295fb2dcf0306bb746bad8ad997abfff3e863512e574c0588",
    "signature": "0x899a7d67e34755dbeb3f8f3e64dbb4e2e038c12232fac9b2aa0e6ef932638e3d6b1d95fe851e4c59fddf71600ac2eedc4672e36f554d8f55515f855b3ea8bffd1c",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}