{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8614",
    "entityType": "User",
    "nonce": "0x905ba87f935b6c08ff19aa80908cce31edff54876e7e2df5d00ad54d23dbd2e5",
    "signature": "0x7bcc3243562c91ecc2316c505f983936d1856efecfeb357cddc60fd1cc2f6d54271e1655ca5af0d7d339b8401b7fb769087916b92b673864ff5316087fb411071c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}