{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "191993",
    "entityType": "User",
    "nonce": "0xf0c68db37e21924e46d66bd926edd5ad9fee40c106355a14ec05b590cb951404",
    "signature": "0x0900dc7b593efe7ff861fdc6d8ec8d063de335156c06871b23ad04d06c8e03bb3ee6b1a503b935161920a4715304821000c1d3c5a3108769394dfdc8d269d1a71b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}