{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "633359681",
    "entityType": "User",
    "nonce": "0x443c14ae7ed1ef3116988340aabe9644928b8034efdce154074fe0d34a5cbbf3",
    "signature": "0x670d3084a249e59d3fd20101909428a2699c9b3c8580f6ffec5aa4b80fd89a2903d2ae3a7b1c20d0d8b35542f14d7daba5eee65016fbb17ff279970f83ab8e8a1c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}