{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325172820",
    "entityType": "User",
    "nonce": "0xca2f13e861e87efba17a93aa8cd594e30f734560f403d9af1906d0980a0ac76b",
    "signature": "0x0baab4b62a2195b0b6b87d4f1124e7e184a2c63d91f9a34adabb3d4a2e0d68b95de0c53d88ede0be5737c0aebee2f8a5fb1f13c7acf121d6a470943abe7d2c0c1c",
    "signer": "0x09Ed944A6653804DF5E864d5240c837F643E2c0F",
    "userId": "214509563"
  }
}