{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "612212110",
    "entityType": "User",
    "nonce": "0x87a928b37296c60f20b24b59ab854a8e8d4e7fc21bbe8e483fbd07c88fa35ef2",
    "signature": "0x3855829200d5db2207c3d13a835ad10d01107091c8377e3d68c2308d46a2280a31c8f7859440d7e771438fce8647f330ba0bab96d7824e4418b946a4d700a1ca1c",
    "signer": "0x833ef27c5e676B068b59D1f7945C3183e1756C2c",
    "userId": "411919841"
  }
}