{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "737872723",
    "entityType": "User",
    "nonce": "0xf949cbc3469b7556b49e710f01809d0149f2dafdb407a9c32a9de75251d8734b",
    "signature": "0x101c84f4cfff4a33ed9e4b714b3c2df31ab380b9158848edd43828d43f2fe93a1772be04d678cc0dea3726c4ed937131fb27742d93392c3d5cf632ca4a12f1d01c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}