{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "965708335",
    "entityType": "User",
    "nonce": "0x97ca72e0b6ba81735427a935cca2ae6df40fda0cccd59ffb7f7ff9f47e92dc2a",
    "signature": "0x99aaea7cbc4098855f828a1875a8800f4382c928a117c95d2bb8b2906d7ef04e6599bfeb04e84de821f43f195014f2ba673e47e301b5fcaaac9291a71025b8dc1b",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}