{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5de4e0a26e5b5ce2a6ec51bb63d764aeb98a3199cf209ab509faf1bd4f2d3dcc",
    "signature": "0xb106e50e79e2b71327b176f73394e17993562a9d5402d27e9bab12859d2fbe323c8e663660c6ba573d845d361f5d520c54731f4c36f2eb3c8b978330a3377f421c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}