{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "61841583",
    "entityType": "User",
    "nonce": "0x751475a36aaff32787edb636ec8ec46d8c331e9c2a18f38e73cf63581c8c88bd",
    "signature": "0xc9f520631e716461f35642b3c939e395db60df0c2b0afca9f9328c32038bde0f2b404ecca8ee07270327ec319abcf1e4b8243b771df98a915f585b0c6d1508751c",
    "signer": "0xC7D69243b2161915036b32017e4FC8ea02d7faF1",
    "userId": "80378"
  }
}