{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "753712",
    "entityType": "User",
    "nonce": "0x4d2b364c282f28d2592968d34c7748d0a2a93a917dbc6e2f28cf7b82a600d71b",
    "signature": "0x1a031c7ce28679a16292746aa772463ff040e0a1152e32607f831a023f2199de36cd97278fd8ade249a0fcf186b80fa16f6f4dba039b8af38aaabc69538ec85a1b",
    "signer": "0x2ACda02e37Db2DC08f82aEFAB268F0610974bb3c",
    "userId": "416239376"
  }
}