{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20790",
    "entityType": "User",
    "nonce": "0x85758a966e2ff13ab832a72af61d3d89c50dd3f7542d69c78ffe84b494d89105",
    "signature": "0x866d184da78acb26d28339dc38519743650f50986421f8d61e6a2bcf0baaa03c02a6f0da2344fdbb98cdd3968b43c1b4ddb7c58c442197696508008e6c143a5b1c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}