{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x996746521cb85ca00f6111ae9eea4bc6d9551ac2729537e4c46376ad868f613a",
    "signature": "0xa4cabf6ad24a87563b6f9554f5a9e769a6f52ca2c321a0945db00fe41aa64483181707e9399e3de8b65fcf136eba5b1265d17cab00b907b97801cab513a78d361c",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}