{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "507170227",
    "entityType": "User",
    "nonce": "0x22942b65c73d0418cdcfa533521810ac683a682ce860fc15ec13eb39120ef3f2",
    "signature": "0x5160d932c498fbbdd5528c4abc3083618317fee6ede4a920c84b7a2320c21f8e51431766dc773fb829c1f5629aa7babbb6a428bfae0afe2bc9db2c7daaf62fa61c",
    "signer": "0x2F7db4C1AE3922aD0f32CEdED1870278dd17b64b",
    "userId": "467213409"
  }
}