{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1470920",
    "entityType": "User",
    "nonce": "0xc4b11697928fd4656562827055ae9f940cb7a3f90fa88914c98d69a7bbbda36f",
    "signature": "0x51699b1578f3364f7d7cd19dcd7598384f0930aaf97312d124862d024efcf4b537985dbeee0ce7eeeeae9afc89813adf64e4dbb098479c2d3330653e6be8c66b1c",
    "signer": "0x52F331C086a11941E738a6C86d9F127E934dDEB1",
    "userId": "281470566"
  }
}