{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdcd6823f9167c8161dbbcc8b7a826df2e12470fe1eb644b068ca187397ae345b",
    "signature": "0x103ab6560040a17c09a55ba44887a1f2ead1f7563b13c83a6d1b5dd45dac5fbf7743af839f2071fababbccc68ac9f838046bc074168e42410bbd4063423db58e1b",
    "signer": "0x372CA9a461c924D58112Ce408A2D849f803cf710",
    "userId": "750264486"
  }
}