{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "330431",
    "entityType": "User",
    "nonce": "0xd743d51c17a9d69c259f97c56eb74337e2d0bb92f8378802bf231a0acabf8854",
    "signature": "0x94ed86ab41ff97e9beb463bb561a9776f17019974386befdede97cf9bd71769176a684fd94edce211035f6fc5ac6c6e8a40d17f7de1291202af35c196ee540031c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}