{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "301606",
    "entityType": "User",
    "nonce": "0x790c5c57707d0c3b6e593a56ca61ac98afe41f5f668670ddce1ada34e6f43f9a",
    "signature": "0xce3f7c78d57cbb1633e247fb42fb510b13119a7e327b890aca268c901100617c0efd88a5e846e49582a94f6834297bdfd442c8cef0357b6c0fe77eeb2221ddf01c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}