{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb9089c4c4f482d25e102f2ea5d8311f2e73100107dee78afa24aa0eb27ba5ec3",
    "signature": "0xc65f51a42861734fe7a24ce3bf32adac8d2bcdd03b7a44a316a11903bdb23fea7fc70e9970c65d6ebc5e61598cd58b9524d289124f71e604928130a2542119931b",
    "signer": "0xb32B73A31fdE5d745d2267a7cAd64F29a4b3ecaC",
    "userId": "809090767"
  }
}