{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120124",
    "entityType": "User",
    "nonce": "0x675f9d7160f1eeb090c699c5cc5d5e02ded5f6f634af8c4c4363787ef7bce6f4",
    "signature": "0xda6ad2fc34dc8545a79169f6cde8dbce5c9ccec58233a6048932f8fc6f6d068f48420e0bbcd6a99cde3e565e67920ff2f4828b904eaaa6b673f366682ced621f1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}