{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7c12e82f1e989df782687cd1cfe69054c198ce461bf367fdbdf741d4e1ead19b",
    "signature": "0xd885e583cf004e5df0a79c0d29ee568df3c1dece898e8f34d15a447f32c073e70f1178a271568da8f3a0661bfa80866a5e99ecd4cb6d78aebb4cae839f8a5d911b",
    "signer": "0x8d215A9Bd160287762B58da5798Ff7b71F5ab228",
    "userId": "937736805"
  }
}