{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0xa20d67e6c92e07f02c7767d9291489873e59b7e9246a038f2e896f66681c8155",
    "signature": "0xe449b06ba0a98fc18f6be4d245cde6cf6e48ae06ed78f16facaabb9c8d409cfc01115294503110d9f4ee3420ba3867ac157f9095732ffea91eaf2bbda53b12d51b",
    "signer": "0x0543DBdF9580c150eCC3eFD822D1B5c4963d3288",
    "userId": "116425983"
  }
}