{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaf25e25845973828bf6308c4f4a9886be4d3582c9b41109735f185be4413b0f2",
    "signature": "0x2445bc0cdd12c3d83b677f7dbf6904ee11b44bfbfa07e0cd67af111d66d0956d6ca086fdcc798032802fcc9d92fc689898a0023947c9f294e9152c90efcddaf31c",
    "signer": "0xb69C788c7cbc7dD9aBe9E91477F694152BFa6a5c",
    "userId": "129846494"
  }
}