{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42179",
    "entityType": "User",
    "nonce": "0xc894f54821ec27e0be21857f14d01cdaa76981610d6231797881e4c2e2b40741",
    "signature": "0x583c296810aab7eee1ac1391bad4409a7d5fffc1c03c50b2e98f4a3ca3707c8b3a35e8c9bb1d4e3fd9c548e4c2f5972c639f4301b6c341df41608b4f3fcce10e1b",
    "signer": "0x243f92B83d056f818b9b95664A8B7A86805A3E71",
    "userId": "111448"
  }
}