{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "871929900",
    "entityType": "User",
    "nonce": "0x61d73cb0ac40266e5a9b99104281336658f12f4170c033c644642418882a46b4",
    "signature": "0x9b9b2c841f198b4c6448b5d8d41268b2ec7b1bbcc21d496767be74cadc53e21f4ed97c45fa0a3f569d74e4a5e6880dada6c504bb852070fd6ce2dcfc6867ffdc1c",
    "signer": "0x292eF57C1FAAc86008ab58D5116e0ba424C9189b",
    "userId": "721084704"
  }
}