{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "273007816",
    "entityType": "User",
    "nonce": "0x141e601ace9f2690c484b2d575450366831cf6f09fc9651167aa2b3ab9a69e4f",
    "signature": "0xaa6c8099b47772e0ae102baa4a83235e954a069767921cf0938b41f8cb6921ca4e15f84c218693d623a6fd346ce644da3d0e506c87c13375a95ccc716c284f511c",
    "signer": "0x2ACda02e37Db2DC08f82aEFAB268F0610974bb3c",
    "userId": "416239376"
  }
}