{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xeb3aedea75ff032f0e884fdcef067ba0f2d18641190c979d9d0577e72190b5fc",
    "signature": "0x7af15ec486b8d6d9667b50de5589853f354b4ba9516b3d8c43863dbb712101801bdc02a42067169b805f153a88bf5c67c0a24c740e972c006102ab10ae38f5311b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}