{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "861108288",
    "entityType": "User",
    "nonce": "0xd6beb8fe2db68e8013a04516989aa9be981e5fd38b02fdf690cf424deeaea3e8",
    "signature": "0x59a5529202ab37b5250b5ebd9d6cff19d2b82f9c50bca7dee37f507f2f5dcb1b0afe6df1960b144980363da4da190a70fc193c8e3cfa8a06dba0f9152b2ac5f41b",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}