{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "373125",
    "entityType": "User",
    "nonce": "0xbf7aca2c1c1cf16c85e7e6efb3bbbc3d008ee44b5682146d503fa596a17b8405",
    "signature": "0xed0b212d0bab2a874d174d542cf9a970647181e64e1a9c7a4f106a1f2fbe7f716f3cff36530d3625eb30445eeef2702a204b9b44c7de07ef0a73d83c5798591f1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}