{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1415509",
    "entityType": "User",
    "nonce": "0xf1432a820e17a0778ccc3352d24816796a2e4f90de35bcf01ba58b6db66bd380",
    "signature": "0x59653ae61bb9e780ce6b29ba6782491f09ac4c27d95a2dc679ca6a9b5ed0fd6478c06c2df858d7f7c139597417ad70297aff050e941bd3ea80bf19dad61f71451c",
    "signer": "0x4230116F60d3989D218B84425D3D1Dd6C85e1393",
    "userId": "86128800"
  }
}