{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4589",
    "entityType": "User",
    "nonce": "0xc62e0b8be3e866f94d88f5b73556671214287835f4e6154058e1e6f85b0e8fc0",
    "signature": "0x280e3669f65d1271c75885d3f85c17c9432aff8535f0f1d51a77b150852d0f881e14f6dabd869a20af33e42f750ff475bb493c93c770819387477c153f8c177f1b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}