{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5db3809dfde24c1ae065f15a00d3890310416121ebb45a55258576ec6e844729",
    "signature": "0x82cfc3a2fe42f5ca3d7b7740513842fcd5da11a8cb9ffd5c97c83c34977f76e2773607dd02bb9ebe9749585c6adc68f8db35e32d6405a5147bb9ba4e7a821daf1b",
    "signer": "0x136A4e19270387bc21d7e58a9592D46864B0Ad57",
    "userId": "956002390"
  }
}