{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3497",
    "entityType": "User",
    "nonce": "0x61f39cec3413262e182f92195722544ffac28ca893c1e9c18d884f8adad9b35e",
    "signature": "0x9702267b4078f0a5694ff628eca715ac3812ff7b5a8efd7e5ceac704bb943cae078256539fd11848f4f1eb8516dea0409f6406b5ee5f37e004293b8291e5b1ad1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}