{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "48985",
    "entityType": "User",
    "nonce": "0xd353b962c265b3345b85b859eab61cd0aeb73f04fda6b5eb403cd7ba307f2e47",
    "signature": "0x872d41c5a87ab3e215b60013b9dadb53abf009aa60160c4de13117d042f7b2374b18070a4c7657f90eb2189df0ffb2eab59db96dcfa1dfc300589390eafc16e61c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}