{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "129104",
    "entityType": "User",
    "nonce": "0xf805a18275d63b9533507a4e702df1ffe1337ebc3839a61a2e7cd6533c015775",
    "signature": "0x4d9a39730415a958a08d57cc3c2374e6449ef82c1a5f7fc134e5605e4435f5490630dd30d467a39a9c35684fed7e7af6dd3a8972e47f0d83ee89db14a057fb741c",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}