{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "133643",
    "entityType": "User",
    "nonce": "0x9808c766df232950cdb25271cd664620d5cf3ba4b8c8ff4bb9f96521e93bea6e",
    "signature": "0xdafbb4dba6da075d64d24fe5bc9d51aa8a4eddae4e8c39c18ac89e3f9a4135dd750245f446530f76abc8edf85f92827422296d6c73c6eae0d4a5f0b1da4548571b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}