{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "66005",
    "entityType": "User",
    "nonce": "0x3679a224832c90a5af03061bceb09e1ca847af19bb8fb341f4dbbdbe0a3e6412",
    "signature": "0xfab7c8df290f5f4ab2ccd37fa27d247238294fbdada0fc2eba8721277ae0f0b266328cff7582d93b5c9f167cef529296c5a03a3df5225489df948c8fa6420dd11b",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}