{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16067",
    "entityType": "User",
    "nonce": "0xe0befa987d85ecfed92582e6617aaf98d049befb3b0f4f2ac7429c0d64e765a4",
    "signature": "0x12b94cb6dc20326814ad93bbb7298bbacaa38ccaf290854d8e7cfb33528f06d520285460abde9632608e33f492ba22116f0c3e0b9576a2e24fcb147600309d001b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}