{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325",
    "entityType": "User",
    "nonce": "0x0acf268afdc90adcd0a19be8f2aa043c11e8d984b173e9f18db9eb5cd4fa03e0",
    "signature": "0xe2b118a48a7edcabafa3b4ebaeb41e6ad5b71b662e458b06aabc0a2fda48c47e742a62ad39d5785b6518d8ef88ab1663f2a62b4082ff09f19da838c8d3a717371c",
    "signer": "0x7a252808bd60a26fe5184c95eb104CfADdA8D4C1",
    "userId": "186415718"
  }
}