{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0x12307008478236567e996cbc985e5f8d4cc0fe0c8c98da7e39c3888c5c87cc4a",
    "signature": "0x3258b10c2e8efb948078eb802fc9c29026b092688f57328db8fa10efd4c806144efb954a8acda50a6260b6767a890871aa629df7b9916d2c6a7a23029bdd79241b",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}