{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17572",
    "entityType": "User",
    "nonce": "0xb7e016b86e054e0c824aa43cfe14ab65ffbf18c97032c042f3dbebfb057cfff1",
    "signature": "0x96b7e98b4377277cc66351ee1248d0cfac4637a5c7f36d6c354d06fcc66410f14439966e26944cfafe3bb80972e989203a5ec2eeca74c80c8f3f0bda9ead279f1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}