{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "838777725",
    "entityType": "User",
    "nonce": "0xb00528f727f7bc6870bbe37af48f9ad85d074e33884efb0189e006bebed9ccd1",
    "signature": "0x48b1f0bd7ab999c764c202147ba2482b86b8a4d205a16af7588f33a2cfc9b3d56df667c9d8db89fc51749d0058f609252eef25c0b1764e6efa914a0b50c421de1c",
    "signer": "0x63EbE5a1B5C5F156330BDf810f5fFf6A224c75c8",
    "userId": "309080"
  }
}