{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4566",
    "entityType": "User",
    "nonce": "0xc593a58d7c7161c568808f03157b09443ae3a1b6c37b0f3536979626b240704d",
    "signature": "0x572cde774ca5924b6687aac625b8f26fb869effb202a1fbbef408878bc47a1dc1e6f6825a83f26f9f2a347687068f53a460eabb464be19b254b2147bcf9f382e1b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}