{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "167551",
    "entityType": "User",
    "nonce": "0xb2ec80e9ef470d270b881d0ff470bead7b1842a6245c3dba4f218ff95b8e3860",
    "signature": "0x9f6936849629803cfa57e7c4d3335012cf7f0c040fb330e6b876638ce65352d9475a7afdba78d4fe676270c2357e2c8e9e7a8d65b9a53b1eccc5ffeaaf3f28d11c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}