{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xea5cbf8d44e343b99a34df48d40efc573dc2d80dac12666d99df7df17de043a2",
    "signature": "0x053485678a05dd29861dd625e9c3bc7d8abde024fc94697f1b1ad81b75bc935c1bcc93f4f8cf0a67eb70ad907fd33fc85aa797de8d544618517333f48865a9041b",
    "signer": "0x9364Ed21edd0A5692CC538D9a1Ae41803e9bEd85",
    "userId": "262486253"
  }
}