{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "173906",
    "entityType": "User",
    "nonce": "0x148cd55f275c8a9874afc09e59864dd154e296eb5236a2a6cf10530e07e8dc99",
    "signature": "0x3d8eb3ad478606956ea0e88035bd2ec3029a45423584f7e9fa66484543e716c823d55bf2538fc7e388e0ef3e47adea3b4961e33ec415520f1d5de505b51febd21b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}