{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325624",
    "entityType": "User",
    "nonce": "0x39034269ee6c4d2d8d8ddd046df5fcaf89a2c14877c56885855899aca8f2cbb3",
    "signature": "0xa356a3372ce3e5536dfcda533b83470897958ceefd335fa0388056638f2547f7439b6c1248ae02f9948a7f2c79c6e5a490c14ecb8ccdbb347a4b3c6f4b4f2b881b",
    "signer": "0x4D386A3060c2b887771faBC7ab3462336663fAF3",
    "userId": "271191164"
  }
}