{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb8d42a23f3dfbc29f301b28ed12eaaf951c29e4215cf62df2470cdc191b755d7",
    "signature": "0x744cceed77acfbc9205fc0a800ecb417783b534468f74bfd34a3536070dd1f5406731f12f89d7eeb834a52e0179fbca964b55f6ae9774137c5b31236c0c258d41b",
    "signer": "0x3392AFc96B7A271F8841162275e7AeC6E4Ac26CA",
    "userId": "203716707"
  }
}