{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "72801",
    "entityType": "User",
    "nonce": "0xec6c467958a866d23697e600b0e603280d01e7f8b745a9f0a9445029c7f59b4a",
    "signature": "0xe9010d3ca76ca56e868af786e087be0cbc94ac3210d8e1348d5194b9c79511c84610b47f46021f4fcc220c428bf65440a6a2cf4a81895c6f729ba23d6210ce0f1b",
    "signer": "0xF5C198A035503518a579b15Fb9eE834F3b4b1bAB",
    "userId": "765691673"
  }
}