{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "502385335",
    "entityType": "User",
    "nonce": "0x55ecfd7551703eafbc8fdb797fd4765f833571216f0f4e8f9087d506ddb6682a",
    "signature": "0xf0448dbe9eadbb9827c50c91c751bec389d73c9405e5d3e40933916fd655f0c150d704547bf0b5dd96a2b72eae32ceed8747ede684297d6bd2da4775cbda53641c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}