{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "346741915",
    "entityType": "User",
    "nonce": "0x81cf067e6525e7c1076f4e105995848e2bbf78e86b1c069fab93f7d2e5142173",
    "signature": "0x61d4f1d8842c8897ba8bba848fee5501e4c215f1a1c85936e38ae70fa14561b4173da096d3f26ca3000dd58b5e93a49afb2dfe81e86c0138ecb46c0bf58c6ff21b",
    "signer": "0x14E9E2DE68f02AA0cD2B7566Dd9B7A0993b2D124",
    "userId": "832018853"
  }
}