{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x25f51df29bf356bd0035e586c8c149c2f9e05f02ddb7807fe43202175c3f6dd9",
    "signature": "0xd84b31e78ebdb35ac72f111b0da12b6a5b92e1d3ac90e60dd032d61ffac8341246e7a912e8972f5d0d0c94761ccfa46b7f2ea3e79535f51353492343f498687b1c",
    "signer": "0x530E20163d8D23861b3dbd0544C185A8C7B1Cd7D",
    "userId": "483070360"
  }
}