{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbff7184266a16718eaabec37918d4377c897130016c7825d9805c46b0da622f7",
    "signature": "0x2cf88b0888868420c2b2163dddc4f33377daf07c010d0902aad9e974c3d3c003772f6e057de510a84514d319804cc02eb29e2abb4fb0fabcb35caef4d685a13f1c",
    "signer": "0xF1c5D51EaC4C85B878E6c745686969726F6AC602",
    "userId": "904988167"
  }
}