{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28155",
    "entityType": "User",
    "nonce": "0x80f6192eaf60251c425d89eac838b0ebf82ee4d35f08200f80c5c5a280b03c7e",
    "signature": "0xcd71ff75deb8aa216fa2a5535c2aff79a9d16c5ebab9ff18fbd6b577fd591c8d4ad97576bef50e4f19823abb2dfd9622997c56b18c76afd74f36c66875b48de61c",
    "signer": "0x7547B44B7404C0bBCf4bDdc35b8FAa60d5473289",
    "userId": "779235560"
  }
}