{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5562",
    "entityType": "User",
    "nonce": "0xed3360624873f53f0ed8d4e2d1aaddbf90064d0feff6fb28eb9036f7224c6b69",
    "signature": "0x9e0bd8c7d6af3e9feaf57b366b4aa8f61902d20f73dec227b2a2a19f0419851f48c6898b77c24c38f71c6d9aa42f5a03e51ff0361027330df5633b061a1733a71c",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}