{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x729604d19de88784644d137815226d046a148c2b153418c3d2d19d49fe1d18d4",
    "signature": "0x231c73c4127fec0ef00bff8113a88752e5a1e63f9300bf116142bfc6cfb46e0e55a17f8457be77f8596b88deda105a37da8de450ff1dcf17d2b5a3b3c326c6e81c",
    "signer": "0xeb3902b6DE309d83d0C5a769a659b44806E0e1DD",
    "userId": "185164151"
  }
}