{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x34e5c6a3afbdf04c26a8a663561c97923f9eaa2911f95ee4c634a469d15860d0",
    "signature": "0xe52e517bca7195d0c7252923bc53392af8a279ce3eb2500d426d58d8eea992d5302c3cb131798c1e37db7bc8c3c5a14a3696b6ad68e7fad09af8a96e73e301e11c",
    "signer": "0x6b8CBA667a1288Caa4Eb2f1ABF8e68cBDf4af260",
    "userId": "635245416"
  }
}