{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xca9237122756c968446a8b59f51ad74be05250c6351286c6619c0ac29c587735",
    "signature": "0x1b61baa2f20a975e788474afc59fa46ce9b0b89452aadae76fae364c7b57b7e979f45f3b6cf8e1644df824d730b29264a4ca3c453586e6847a5fca7c6c25ad721b",
    "signer": "0x6CF29C21c9C0b405C773f3605658C095Af4c28EF",
    "userId": "950485788"
  }
}