{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "40839",
    "entityType": "User",
    "nonce": "0x1a56cf27ba4c72bd9abe1a3cf99209bf9f144c7d13f6229d79998d9f35945049",
    "signature": "0x25a25fe0c19fce8840f072f2f2938a73eefe5346d643c5a6452293e8b7d7a8555709e334e30b9f3f41ee0756de6ebba8f98cfe972a74e65cf06b13b30aaf722a1b",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}