{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "87950",
    "entityType": "User",
    "nonce": "0x34b02ae4062fec05466c09d919bc593c4ce570956ff38e6cf96c53d7ecec8171",
    "signature": "0xc3a2ccc6fa2acb33da4f529ec040afc02c60b966132bbfd7b3b36ee8099312910edd4665d135ad9b1c10cb9c8d890dcc14bcf332c6f1113b33ca67c8f1761f561c",
    "signer": "0xA5594f75935B53086a8f3231b314C131605FEDA6",
    "userId": "140185425"
  }
}