{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "124907",
    "entityType": "User",
    "nonce": "0x4ba391d525a908c4d6d172ddd9ea73b68bc10cdbd873f5b9070d646f3e7385ff",
    "signature": "0x087dda0439ca3b23bd1f7b9acc673db825ea6eb539fdc61847573a4da69cfbe005f52783e4ddf0a9ef45ac05159b125b1dfa3c42ead02c3004162fad6dd9558a1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}