{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x65aa31df7768fd2407f906dd4810ec6b532454616c7a264f56275ca9f785bf39",
    "signature": "0xbf295c59ac8aeb21f87e01d65b1cfe47a04034d3db3d7aae6121b4853e788cac78a6c167413abcfcfd7b582d452eb684c421ed0ad7d079c135119cf671fb25201b",
    "signer": "0x608Dd5E893043E335D3b51344D59Bf53c0F00171",
    "userId": "934093242"
  }
}