{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x3cb63f58750f040de958f6ce38bc1dbe518169fb61d82b3d0339f0d36c563174",
    "signature": "0x507b33cad889890c30f0f6b826923bcf24a32232fa33e0c6a3798bbc98dd48271747d0c385539e6c0f40353e23a788b2c5385c440193e7dc21e15f2aa2409d021b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}