{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54812",
    "entityType": "User",
    "nonce": "0x122cf04c7309ba371296ba7192e6b4dddbdff42365abf26d28de9cda58a280f4",
    "signature": "0x44f30fb238e876355e3f3cdb0432b3307fa08a5b04535306dc1208fdb0a2ce83461d467d99c9a7a5cc0d816d8ad0b2d4ab189409f303358e762d9317ee4278961b",
    "signer": "0x05aba01c97C4F182D989670622abE9c797782dD2",
    "userId": "508263176"
  }
}