{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "225231",
    "entityType": "User",
    "nonce": "0xa035f9f2f252f61d37003479c9d5d73d4f709c78ad411ae6371a930b44a5f8c4",
    "signature": "0xcd945e58e7667ed36cd5e03c1ba735e7fcad30a24909ef20d30a8c38fc25c0ef1b1dcaec43b08f04771aba3f0bf5cfc1d20eec88edb0c1fd4dce68a76c9c24371b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}