{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5761e5e96e2f161ca9a497f4b7b17ba6246f1af12690df4b32e128b062a96ff8",
    "signature": "0x77cfd127f278bab17ed23c838e2d9a727f441e0babd52500b955700319f9e5400b4ea7e5875a7fa60865310b7db880cb7c320eaccce1a9c32c601bce634cb2611b",
    "signer": "0x6a894B40bdcB66fDb197e2a8dBCE8F09670FE186",
    "userId": "217810821"
  }
}