{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7077",
    "entityType": "User",
    "nonce": "0xd9aae1911dece2ba01a905e2f2027bd980aab48411bb0b11d554f792dc8d5131",
    "signature": "0xb3bb85db96fc3fb0b6031094b4a67e58112c41342db44c40be1afe20c3b4839409460a2a9757be2334fcc30d114bb3ee637b6a39d812b473a75317101b28bd841b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}