{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1320229",
    "entityType": "User",
    "nonce": "0x6d40914c1121f95859d2ebe66478abf95ac1e22c6091ccbcb49f826f9a8cad0e",
    "signature": "0xa49905662b4b02b6c5a15ad7642506cb8f394d39d965cb387287cc8851325e5616a0f6a98fc622bacf0191ab88b101468f770cdf99fc772aff26302adfc337481b",
    "signer": "0x63EbE5a1B5C5F156330BDf810f5fFf6A224c75c8",
    "userId": "309080"
  }
}