{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "234183",
    "entityType": "User",
    "nonce": "0x482b6b1cd6bac64838407d4eb639d778534f6cb85b19e6ce5475e15fad35b3a8",
    "signature": "0x358762a276154be5109847fcfb96621e9b5293b397cf08a0a596879e3a407d6675e37d773e6188d2a4f5b5de6afeb575a6ee3c055108d7fb2d4a4585931dfb061c",
    "signer": "0xfEf199273dc1B7112aA0D32cc0DbF797aC6EAfE5",
    "userId": "198179849"
  }
}