{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "81256",
    "entityType": "User",
    "nonce": "0x73f5a971cdfb9f11cdd564c537ce2b53552ef96d48087c27a3bd9602239107d3",
    "signature": "0x144c8e113f43ad782f651ee86acae2e678a4d5e0558a97c66613813f0ac10d3b267cb5b52aa869b372b8a1fb97c44b0474c861f2e3731432dde5e8f43b20036c1c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}