{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "285862",
    "entityType": "User",
    "nonce": "0x2f592c23020b7a582999d665dfabd5a27fc1b57f3f93ca1584b50dda4343e850",
    "signature": "0xda3436d8bd5b7629dd33fc94fdf1a487b7f4f4330470c592210a5ad19665aa10633942d0d1b73b21d0e1b0ce183399d76ff1c04f79fce86ac9b35e8379dae9f61b",
    "signer": "0x5f669126A64334710E37f472BfBfE0D8cF408577",
    "userId": "171892"
  }
}