{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10203",
    "entityType": "User",
    "nonce": "0x886a62047a3cde18ed7dddb56e262691105e13d9e619ed1faec9c318380651c6",
    "signature": "0xd92462b1fae062c1c9a527fae49fcb36749a7300e75915ac24b27cbb6234e91d292da00b85beb5660995ae77553911bb6128f571acb1064c4e73ee7eef18197b1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}