{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "219358",
    "entityType": "User",
    "nonce": "0x85098d12e00385cf678b6449b12feeb2b139960920b3a09a0e59b9986b9534d6",
    "signature": "0x4f7ebe842cd1525e70f32c72e41883d040ea2af8058ff8cda9bfe3b27605fb681a65ae2c0cc9acad8fac97fe836906933665ef27dd5439c82bef6fa9f79a38971c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}