{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "25895518",
    "entityType": "User",
    "nonce": "0xbf5bc1309359f327bc78cfb50b60603b0be6aa83a6203978bb36295f340518b5",
    "signature": "0x3e50a6ab3dd57cb8728e8b51d49c89a748a6d5ab08fd13a06049ebddb82d715b0ecb0403cf6eb96ef8fb295cfc84de416aac24c53cb12038fe42e4fd0b41177c1b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}