{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3212c47df627a02fcc37e0ed6cb26fe3ee761f9ca7d276ab1592b5ba27db6f02",
    "signature": "0x9b217aae90d07417873ee759ed260a492d825822b53c9197a2e0c96647ee6cce72ea6da5988c9762282875ef334ae5b2de2067f16d2f499b2f22e93a01fe92fb1c",
    "signer": "0x9De2A5D519F8A609E7f870701a99029A70a5A1Ea",
    "userId": "739153526"
  }
}