{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "357414",
    "entityType": "User",
    "nonce": "0x1e7b262254e281bbe07f6232ee013883844f424f2ac96594dd5f16c49dead60f",
    "signature": "0x63be987c5bba66586071237a0e7ea81c7cd0272b2baf20c1182d3a7bb66f0c3f41d45acad13a228831e3342efb8974f59a1f3f11ecc4fa70387cf1286e81df0f1c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}