{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "217533",
    "entityType": "User",
    "nonce": "0x9b14327adf6bc6d06a982b921b2917e5d6d317a3f8cb3c6ea471383c92559460",
    "signature": "0x7a324b606aa414358b8213e042feee2c2426d75b28493064a6db925dd9c33ba35ede688c25abe62f5b2f536def21de8ae388e75925064aff3cdc36a3cb4c41931b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}