{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "386745392",
    "entityType": "User",
    "nonce": "0x6765eabf36ec6a3886842647560b5a84411de31814687c177adac3993d9b7dfc",
    "signature": "0x53366fe4ad0f0bd595ba47b9c21c5be9bfe8463bb2dd93b37f6b6d5ebbb0953141a866ff5169555436ac857aa1011bf649836fdc5f87429341e6eddf99a9e9a51c",
    "signer": "0x09Ed944A6653804DF5E864d5240c837F643E2c0F",
    "userId": "214509563"
  }
}