{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "183245",
    "entityType": "User",
    "nonce": "0xf1bfa3245af4d6e5f38aae99f166e9fea84f4626334c312e605073ca7053eb0c",
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    "signer": "0xD4186490eA39e450cAe5e557A0739c6dD45Fd9Ff",
    "userId": "561643473"
  }
}