{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0x0859ac0ae8d7aa441fb2c5fd71cbbe5e57d7eab281835af3c9d6c235ab077cdf",
    "signature": "0xdad3d9e9bc91b70459bc0a9e139943fee9ac75a143a2bba7564cc4c3fda1fca948e0c631f3dcbf1129e6bf12b86a6d09012679a8799b48255dc62daf6085d8191c",
    "signer": "0x19EDB4c1a8740c323f6e57B80F3422C01875289e",
    "userId": "390804"
  }
}