{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1037774",
    "entityType": "User",
    "nonce": "0x235be9e341fcd37ebf4a77ecea08129652e404c378873df9bb77137045b89fae",
    "signature": "0xf76e8da354ff825916a7211b9ad33649c87d690acc535cac1db216f690de264d428a62d10e9b755a23041b0ebe53a054e9d4306f794c4869fe5d03141221e8841c",
    "signer": "0xC7D69243b2161915036b32017e4FC8ea02d7faF1",
    "userId": "80378"
  }
}