{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "180188",
    "entityType": "User",
    "nonce": "0x75d9164d86a49366b4c0ff34bcd05ab62e5ffb35c133aaad064f085d21fe75d7",
    "signature": "0x7af73dbba88241fc016d1f46a496838c4c3ce15d209c8377ea095c092c1b61d33ba1570fb4c3f32c97106dd05fda7c4283141015ca4212ae15b39161aeac06241b",
    "signer": "0x2F7db4C1AE3922aD0f32CEdED1870278dd17b64b",
    "userId": "467213409"
  }
}