{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "806873848",
    "entityType": "User",
    "nonce": "0x134d420dfd9617921f2b64c222ffa73c85d5b60caaf88077da5d5b6441d5801b",
    "signature": "0xb36ca33cf89a455516b55194cde115a3efbbe5600d065a2e0d78cc9d4befdf7204584a83959726d26d983d112c15256ad8b03ed5d070bf2ca1059d1a0182dc431b",
    "signer": "0xC1867591Aa181Fd82CDBe51fdDF04Cc75E53c937",
    "userId": "150754"
  }
}