{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "844825045",
    "entityType": "User",
    "nonce": "0x3b10fccd6d341945b8b47b574801f67882bfb031cc35887c18680a12159ca112",
    "signature": "0x5e2edc48e1b2eeb9a3bc37f0056e6697f1809bf9dd6dd8824a73b771e457e3e90f7138233837d740bc162388b74cdf5b2b36e1ed0725396771e15fa5aecee2da1c",
    "signer": "0xd708949D0521A856Ca6eB44B4112bAEE59741ADD",
    "userId": "490478463"
  }
}