{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "981716494",
    "entityType": "User",
    "nonce": "0x85370c851e226f81b51ab6cffe203074b26438fd337d8b12fba1e9fb74f0cc21",
    "signature": "0x9f9a1995ec9b44b7f695a87d146375d78fccb72cfb52bd013899ccd641b8b33c2dfb5a4c293bde5240909167e96173533307ad3766f1271f94b0e249fdead59b1b",
    "signer": "0x94d1769762bc3a1e7DCd3e8a31C89Ff199833Da6",
    "userId": "715573876"
  }
}