{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "86219",
    "entityType": "User",
    "nonce": "0x8f99840401836dfd3c4a3470f727f793bf3e4b313a70d75357926f0185815a35",
    "signature": "0xa9f94d356f998e99c389f5b08b7f6834c43cf6a7c63034b5c6b904493113184c0bfebdde143525ecab0987dd28a3d6d383d590acc3d54c1d5b1d8d3afbe5b0ac1c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}