{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9f19d7411f00026c498a4a95dbe7e0094a715a5b1ec81f6910b2f5127899d885",
    "signature": "0x6b20ea4437283bb33a96f643b23374e0b39f5da162ab14add09fb09fb64dff5e7b87667c945640a39fd0cefc7da5045c261e8f22a63561630e7f858386e209ae1b",
    "signer": "0x5447614d3404b0d3718CBE3037C0c553e076a235",
    "userId": "411516310"
  }
}