{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "387435",
    "entityType": "User",
    "nonce": "0x02e21b75e8fb6d331db35964b8a76a4932a6531830e750f44c300307102c111f",
    "signature": "0xdfcc6e26f8895b8968d94882126c2fd08b485bfdaac6529e0b4afe1c423648145e9a3d42f0ace9358f934c38c29f9e3307d7389fe13e9dbffbbdfb73b0fc24201b",
    "signer": "0x0246262E4959323EAC2FBf603C6D24352d57Fc51",
    "userId": "700531000"
  }
}