{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "357897",
    "entityType": "User",
    "nonce": "0x4f97104d3200654a66c013ec950bf70ff6b3703f2e0859910cb3cbf4c857daea",
    "signature": "0x24ac34cc1e98e7b675176628e2f40819dc5af09f1a76818a46b74f454ca9370a57855c7c6ba08cb2c92553f4faec92a515a2218f996fdf9bceb32403f98bf5031b",
    "signer": "0xD183DdcAb93fd06277e2386f1D93E3834CB7b480",
    "userId": "218373883"
  }
}