{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb0f8bfba1c8e1155c557c39e1f2e95b5fab3d401bec6eccca3f950a24f48fb20",
    "signature": "0x9574112e4d711c5f99039f60ba6fb748aea7ad88251717622be6630ee24daaf47eaadb6b270798fb955c7a5d2737965f98c7252ad5f1830090a4b791522946e71b",
    "signer": "0x303fD6F7668Ad0AD901434B85eF391E249785A2C",
    "userId": "179777073"
  }
}