{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "318682",
    "entityType": "User",
    "nonce": "0xbc744ab9b5eaf84ee921b6ecff33cbe7a51e62803d287b618d3663bb8d5c3630",
    "signature": "0xb384887cb21db3a0f8763188bc91b819316033e00db62f6124d60fb465850e4d5f4c66a2dd531c786348002f73bc42034a17d91222da92d2a7b76bc7fc2f7a161c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}