{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73517",
    "entityType": "User",
    "nonce": "0x1570afa245764397349fcb688ec87e17d93094ef16c1857317fd65a0a7bf8267",
    "signature": "0xb0e5f2dedd0c5530c0742987427431dc3d7b1e8454c5ac63a28c43e7327b861f7855746e0038c7104af8e6e6fe8124e645b4c3e9bdc93977e9c16e7bd16bd3ba1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}