{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "68015",
    "entityType": "User",
    "nonce": "0x8ec1a5044bd0825aa805e88ffce7b0de927c39e52bbcf1e9c5ec16d80f0832d8",
    "signature": "0x389f471d51ccd2a61ea914e946e5b11f9ccb78c767a40f1ec74ad2d0df57896563c72b738ba0e92e82ca1fb80ee8b69606e9468b67a66e2eee44015f946bebb51b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}