{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "148891",
    "entityType": "User",
    "nonce": "0x6cc27466f37cd7a56e80aa5f37c840fcd426c338e06fe2ef947dc7252ebdc8bc",
    "signature": "0x4bf0aed28ef50d0c47c87ac0d1a8ad89e3700fc93bb4be5284aab3b2cf67c1c35aa3e7da08a895f41e8f9927162e5412d8bd855842e541f84ce185ed63d3b8951b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}