{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136818",
    "entityType": "User",
    "nonce": "0x6c361b19aec4ba8c5a907e9bd63f5bb3c1ce005f10d29630eac0d7a9b225e475",
    "signature": "0x072b1c0cb73a7b8d1a73fea085d751494793422e0120552249a52e47cf2724863bae35cdb96226a3af2ec2cc3c77d89d3f637acca97840aea155e1376c0f32101b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}