{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "141879",
    "entityType": "User",
    "nonce": "0x86298679a87643f235365f03fad6d79beb0f4afcda0f1d62d09999de90603798",
    "signature": "0x172b2ada8e906b4fd68d6a0e51a403a5d4f21e878e65b12d854575e1d90a173c529d5aa55b2482904a4a1596b279c33cb0a9e93df7c52b7f46e52a68f638d8ed1c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}