{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "56534466",
    "entityType": "User",
    "nonce": "0x42275b939052c6b4c036a88872320f8ad24f4f5db7f3d9c8c0ec003ee6283b02",
    "signature": "0x556983ff0e8d94010c5d47e73a531b001ea6922b0339c1a5393a61673a151056089360d764f179d8d9870290bb37a815d5cd954910e52571761f0aefecc093cc1c",
    "signer": "0x306495Aa3660C22f1D9875eb0dE750B688de5746",
    "userId": "1885753"
  }
}