{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64586",
    "entityType": "User",
    "nonce": "0x66ecadbd4c9a84ae61cc2460fdeaef9f51fa9bcbf3548c3a1c2fcb7bc1eed2b9",
    "signature": "0x57886f2b514a646eb8be3e678209fabb0cc9f99bc040a2af79ad4b390abe453170b489ff88403759c2c82ff1a66b5762b95d5abb6f42d4812e2c7b3a4f578e461b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}