{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "394061",
    "entityType": "User",
    "nonce": "0x0cfbc3efeda24cee75df8adabc4e3a16d499a7e6b8737b50b0a649fd56313156",
    "signature": "0x12acd64cd463145ac91d957612f20fa001cad3bc60e60a6239fe74e2be1ec47552a550866b0dc4619a5ad0ca955c538adb3d164478209ef62ef5bc774381c0a81b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}