{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "987199883",
    "entityType": "User",
    "nonce": "0xd3daa95201e3ddd9c31f850afbea902419f43748df49d382ee965afea9db8766",
    "signature": "0x8f0e13a0ccd65a4b4858bf840a6e590d9666dec3887f5e6d1d6e001bad7ccd815b8cf891c377bf886567e548928ccb9cc0296591109764853a5f8659848600de1c",
    "signer": "0x12302E88Cf971407d5bdd167b1AA2664556D3385",
    "userId": "68176371"
  }
}