{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "65615",
    "entityType": "User",
    "nonce": "0x4a20eec0627eb7f49f81ae40c8f426091348847284dd97c2e1312f47fbd85d84",
    "signature": "0x8e4eb01a04854d6de534cf4c4b457980cfd0c7a6d603ac9e9a97933fdc5f3d731fba27f0d71cc64ea86e2a7e09adb914554a5d32f10b86d2cb48155699c2dc3f1b",
    "signer": "0xFCA538ea31FC009a425494Ec474062FCFF34F6ef",
    "userId": "266125597"
  }
}