{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77307",
    "entityType": "User",
    "nonce": "0x74b2e5ccf45f4833860401609eadc603399530bfdf25409806f59cc34c1bab01",
    "signature": "0xcb39ea30ab96462b8b784fc58e5fed9cb350e1639f9fcb875c05e73d9bbc04ab00f0355eae7ad0607243cfac718b0d12ba2338d407569552d94f00f5c27646f41c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}