{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc668ed10e0a674f33bffb9195ead12cb9b830e7fe5f2b23e6710a0f6726a703e",
    "signature": "0x6862d842c913316fb464dc8d392cecafe7d83485406f1cd3158be85b78f125f42863351dfeae1cc7fcddc6c72af9bd29f3d92e11ee2196613b82b8c9acefd90c1c",
    "signer": "0x52C54744FeC93B156A460Db7FccF10e22b6FEdf0",
    "userId": "194963084"
  }
}