{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "13898",
    "entityType": "User",
    "nonce": "0xf73d3229c6636d58db67d314be8e5f8cacea628a0b971d0a777b840f97bf4383",
    "signature": "0x65313280e004b808e255d9d5536a1fefc81cf7596339f1ef7998b5779b03e30e17c14dae73eead585b1cd591dc7112639e0f8911fa8112e311b6eba4a1d4c9201c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}