{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa4433f42ddfbffdf94831b6a45911f2bb766fdd9b2e537326a4fa7d3868f9450",
    "signature": "0xa23c220389a30028c59f5bc78dfd63d137d9127932e240fbfdc461c6ab5ba8f83889b5df828a5221ff970cb72b58ab2b7712a0cc6f9cc5529b3cc84fbc3bc3361b",
    "signer": "0xa5Aa26116520A634A6dBeADC3A5e8cBa8b354C24",
    "userId": "479857316"
  }
}