{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "584186978",
    "entityType": "User",
    "nonce": "0xbf0536bd78fafd48fad7f9ebf62c2f71d944becf2fc22d1d1cccfcda7b8c2e06",
    "signature": "0x5b33a5c48d9a6d4f830103e9a5ec38b83e595869ed9e3bb317b5bd377e04f2080e99fee32feaa6d0345a033373c508fdc3f15cf211b8ec9c271ac921addbf4cd1b",
    "signer": "0x52Cb4b468190D878a90e6d678064532b2405fBC6",
    "userId": "184931764"
  }
}