{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325624",
    "entityType": "User",
    "nonce": "0xb3db252e34c515eae5a5beb3d67e0a0c2442fc537a0623834e21b23ede6bfe10",
    "signature": "0xdc128ddd526c2cb031ccd850af226247cccfd10983c9e6babc610c20fa6daac31565d7b8647452765559ccd77601f511419fd2646c489abbf537b72a002d5b9d1b",
    "signer": "0xce728805CE8D9389db39C026804151A65D5e8c71",
    "userId": "321430592"
  }
}