{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "731445357",
    "entityType": "User",
    "nonce": "0x772099107eb8723c7f103379637b4bf82c7dd657abb86489ba92958fa7861981",
    "signature": "0x7daa9cfd28b7698711d1a679cb1455eb9b6398d7987e3e3d199be6bb4906cacb0e89902b16d7b5a151f169b6a2fb2b5256b5d54aad8fd9f771ef33fc26ab53321c",
    "signer": "0x0246262E4959323EAC2FBf603C6D24352d57Fc51",
    "userId": "700531000"
  }
}