{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "107258",
    "entityType": "User",
    "nonce": "0x12f3cab97a151af470c223f682d31f7e59ccf3fabec8387e6c5f19d27b3b8bef",
    "signature": "0x0add18685979f3a4d7fcf8349eebbe429d5dd0ad42553247e394c90e9071c7ec4a43d7e88c3a94e9ec62ecac2adb2b505138e4c69168fb924172adb5617ff1d81c",
    "signer": "0x14693D3dDF26e0e70845c87CddaC0E2F4692c710",
    "userId": "553005221"
  }
}