{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "337206",
    "entityType": "User",
    "nonce": "0x467acdc0c7664394d7a543fb05692d52c4e6efedfef413767792fe6e49af2048",
    "signature": "0x8c1878d266d15165b205cccacf7bb211cf66513aaf86128f8ddfe9199fd3df862423ea6143da608ea0f4eeeb67cc4d762d6c6c9fb1355cc7043326585fff78d61c",
    "signer": "0xe1EBB2b0eed447a94b95294C357cc71235152A13",
    "userId": "888593291"
  }
}