{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "138785",
    "entityType": "User",
    "nonce": "0x9a0067c6917a8c9c31233aed7a0a22770c9ef0a478d576d358eb689691e8a481",
    "signature": "0x62de814a290808537fb80cc395d6c4890f160ff18fb5a810e638dc6daba45ee121dbfaad0a4f46f77bf35733b0934207a4c0daa12cce64cb845436b1360a15bb1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}