{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "170302",
    "entityType": "User",
    "nonce": "0x503b1ce587e39f68ab687ca45a5293e3dcaa70953bf8e709152123e2d9e95bc0",
    "signature": "0x022fec3a925a4446d9582720634e069163f4a8bf2bc147a713a0247e7ea2d3d000f174066514224a5c8c99704f85bac6c8ebc1522dca96daefeaf28b839b6a591c",
    "signer": "0xfC577feBb409AA095E990E5446388414cBFEaDbd",
    "userId": "29114334"
  }
}