{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "171987",
    "entityType": "User",
    "nonce": "0x170b2801d2613057c9b8c684f8a4ffb86b842ff1d4af0f1e91f14389c96812da",
    "signature": "0x6316c37ad22beb5ba1ff135854c0156b8c9c3d96a1e3eaf28a963295d4012afb429037254c5e92e46f501631bbf51819f589d7e59b56d63b7cd33042cdf3abac1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}