{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7d7f865749703022d22ee223e6b61415e8d5e99a0366223825b88ef18d77ad08",
    "signature": "0x89eb0c9e87d3c670f7d3c007f902db121d8c7488653a78cbf6334995c7b70629026055f9160e6e0f431aeef4a17dc2889c6173567dcd2c87438196fbfbf741b61b",
    "signer": "0x1034f4A873f34ea5D4001620F4eDD176f65C963c",
    "userId": "204522051"
  }
}