{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "882853910",
    "entityType": "User",
    "nonce": "0x1479c7a6309a0bbb14fea7bfa522283e4a13ca8368d060df5809f37bea5ac84d",
    "signature": "0x836d62bad42afb1a1c4e056dbaf3642d8faf7c9f4d87ddf1cd0ae478fdd282ba0ce572bbd9474adbf54de274fba73d6534ea92b21ffa98aa6758bc5689a108691c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}