{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "39775",
    "entityType": "User",
    "nonce": "0x4c62ad789d43476685d6c2d21fa3e91838ee4db97770dee3d3fa87eb7bf49b1f",
    "signature": "0xa1161128c39ef6e8f0b191de4fb32dd4507d64f2482bc1f88e146ac196131ff3147c0853a1b18e80dcd9983b04068acb9e636baa11dc9238a18741d4a1be65b31c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}