{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x43cf4527ed650af783b374880147e547d21d73a289602fe5ad7e80362eed9691",
    "signature": "0x5f7c7459034622dac362cb4bd07ad127ec8e19fdd2d3d2f823cc7adcb79db10328ea47c2034771dd01217c1a54b25828c4185fea54fe22f77ce6e0cc6cf676601c",
    "signer": "0x2f6B07A1713a71C2E95288d062dD02C213dBC090",
    "userId": "52033077"
  }
}