{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44243",
    "entityType": "User",
    "nonce": "0x9dafbd5ac1d5eb28118c918e14a1254866c96a6de34a6b1af9019dc0d6a21eb4",
    "signature": "0x8724fcad2e5d3b55f0728e78555a2edc380f7de55fd8a74ef8b72f9caa9b88310d914609292db0651f2f51a0da257708bc7f666de705387f51f43cc1432921961b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}