{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5a69144ff578f2281d5bb889fe1f8e701036fe1e14ebe4d3fffa9ab477363f9e",
    "signature": "0x3bdf678c9006ecae27d99a82508c420cca455bcb3bdfeb8c76560ed02ee9db966f127b7fd309176dd46762d3ebe57bf32339c1f414c09590f4faf816020fac641b",
    "signer": "0x3152096648fe137972355FBa7d01815a50462D86",
    "userId": "191171317"
  }
}