{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb4de715acc963f74e9fd0be5eaa6d8a19deea6abe99fcc95a30671c022ba9d2d",
    "signature": "0x134b46eedab4625c83199021e6060a655abff8140c353acf033b2fb731bd99c236c21ee2400c8b30eeb05d38e6129b299800169705ff1ef973e3ab651fb1aa0c1b",
    "signer": "0x28fC8B4966Ce6368CED67496DaeF648ddE50bC1F",
    "userId": "159809481"
  }
}