{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "29243",
    "entityType": "User",
    "nonce": "0x567e5da43e09ad5eff59911017e5e14f3109eb18acc777beaa9108ab3093c4e1",
    "signature": "0x980524822bd53a9688770996e772d1575eb1c0681b42c45b00d662705a86fbab78c0a94c0242842e0e55f8e5efb8db40eca4bc99435388a70adf743dd28d6e031c",
    "signer": "0xF300c20BDBB459E009c4E55c08CFd33E12f8B0Cb",
    "userId": "782218508"
  }
}