{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "208381",
    "entityType": "User",
    "nonce": "0x5d3618e6a8cd6b777b57bd7111284bde2fdca85e6aa007a2141d9bc7df0027cf",
    "signature": "0x381679a9b1fb673bb41e3dd8b4a1b0da8c6a0451eed88eea81d0b3310a2a53dd44d9080575d08840669c5fd86a1954498ff0c6f8d06f0ff4205ba9c37bde5a571b",
    "signer": "0x4Ff77Da6D5C7286ea15F7F94FdCC04a641dE9a27",
    "userId": "512734349"
  }
}