{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "241215583",
    "entityType": "User",
    "nonce": "0x0330d3e841a3ca77caa625f3ffff49fbdd1263532f99562e50739978b1c3f0e0",
    "signature": "0x8a30dfc8a97b369f7c15a1f5be5edad8ddd35032ea9c2a5231655a7f2cc0d7636ad90722b6f9d6bd2720d53c113e6a8712c862d0d5e1a2081cff574d90b68db01b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}