{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaab5d16f4677add64e793c4f91d43d1da229e2b2c40c5bdcec5a50166c983e13",
    "signature": "0x76bdd3998d78ef4e6bb86da37fc436091712034cf3822bef6f8b476ebd62a4eb7dccb0d5302524d0232b318a0a0f01ac5489e4590f993ece78be35cbfded119a1c",
    "signer": "0xC69389b7A83a682D1764bEeBC6A79ADA42eE56c7",
    "userId": "860339842"
  }
}