{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "197332",
    "entityType": "User",
    "nonce": "0x78b594811022aff21540222673da00ae9c23e66fa65d279d956228792c9d34d8",
    "signature": "0x4b32526083176cb35f8cec7b27b83f520746c1b9e7e2fe3e2dc7a3331a2ecfb7536d5ebb1bde128bb21980dcf03a35419de3634ff6e328f84a8785cae08fb1a81b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}