{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "298205",
    "entityType": "User",
    "nonce": "0xcf34a1a87770c391b8770fa94d8a9a9c5af46ff6ff361d5587e892517549c04a",
    "signature": "0x674a16b19f82559edd3adb5f884ef07e64b774f2dc073a6f1ab094e226c1e1e5291412ba19f63df7226bd8ff83730d51126c4bdc86db6880ab47cfb5a03262421c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}