{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "14419",
    "entityType": "User",
    "nonce": "0x8d332aaa0b9a25c7ffac60f58ca486ba3dd15bbe8ecb90628c63a02d76584f04",
    "signature": "0x53a0fb79278d750910a5d602b685541f1832be6049996085412b9b0a1e98fc625fbf31a82fd3eab5d702812eaf08ad43858af145fa5e550fe23326885e2d29561c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}