{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x26a63648ac874d07ddfbeec6af1ef24e760ecd66b5109e231422b700375c3ea1",
    "signature": "0xb36869e60626bff2189f450591ec88e102e2d929894dfe50528dce480f2652d02504d3e94b267882dc512b6884037098fb74bfca2c70fb6182079b03c723b1b41b",
    "signer": "0x7e1Fdb8C8853c6edB3e64145B995fb2F9F72A4e6",
    "userId": "986108925"
  }
}