{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "395416959",
    "entityType": "User",
    "nonce": "0x8267dbc1d6513e2f5512fa4740cec497beb7b6bc644e3a47bc911de5d60284a8",
    "signature": "0xf10e67a295a6f18172812f8b99efa200851fb1cee094d95df0971464c0f1e67415559bf3afe0ecbb0f123b1b4d265ca936ca03ae06db49ec14d270ef6cac565c1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}