{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "685453",
    "entityType": "User",
    "nonce": "0xcd343ad8da2cc983f91b9b3e045cdfe1735e2d5192c5670c9cb30f5180288e23",
    "signature": "0x7a09cdbebdea3c9b47abd4a7590d5d0c2a0496381eb02fba5e722605e7384742173acdaea4f0deef9afb0de922c2ffa3a26c95715707aaed9a8ad64f48cf4b691b",
    "signer": "0x6fb79570A836Ea8554ad1D745C12769B22f1e4E3",
    "userId": "283478"
  }
}