{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "364447",
    "entityType": "User",
    "nonce": "0xe8cb7750110aa50352805af48fc70f681cac0ef40223d5621c02eeff5d9b98b1",
    "signature": "0x37c75c529497538ba26e49f49713444fc8143fcba82d6bbec8f4a95f1d0e0ba74acaaf2bb802f803d7c40d217c15593c882335c89f504768225876e7836ee7df1c",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}