{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "560200901",
    "entityType": "User",
    "nonce": "0xec9f5759860509fd04d51f611cf64d3066d3f530eeb012b2e91e1b6d368b9664",
    "signature": "0x895ce8cc2c59277a0c2e31ff6a6d17b91653e0bafd08c6d2d13c75fbb6388ccf18082237f154340b0fe7afdebd278465b1a9c6b5d7ec5804995f2698f07784ad1c",
    "signer": "0x4086Dda2D91F77cd46De0859a4de37F888508faA",
    "userId": "568518925"
  }
}