{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "106879",
    "entityType": "User",
    "nonce": "0x16191228256107cf8a84c1aae405a74f48f6dd448feab7ceb02cdf1dc4615024",
    "signature": "0x392df2f75a03debb25957a256fc40f9d154402a16d66b645d165c98f2df6c3390a3d4f8746332a97817ab44c8888e103c36f4881061d360b7b1f7a5dbeaee7e81b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}