{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "791780107",
    "entityType": "User",
    "nonce": "0xddcd252a5ef8c61135378671fd67fdb058ec86b5cfc4c7f9ae4344816ac8ab68",
    "signature": "0xb21b8f9ec2d2bbfd90c06955e505b2ed16c6662c9b715b77a8fc974ff7d3a41f7f9ee52097a18ec822f19d591f426beefa74f5d24a3295f2d95a17fc294bc0f11c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}