{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42976",
    "entityType": "User",
    "nonce": "0xb28ab20a4d77471d70e90fbdfb00cb595af265bdd6bd15bc83309e5187b98752",
    "signature": "0x894bc616c725f02d4755ba8cacaac09fd26da102cab550aeb5ba963c339e98354ca0c0d3de14bdc1909fe19ae245b21397f995a52faf9255cf54aa6c3751c8261b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}