{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "100976759",
    "entityType": "User",
    "nonce": "0x9fc2f5511a4943b89f86ab7aa37c4ff455aa9a68c309088df23b32eef2c44a53",
    "signature": "0xf751c86c658e7a270582fb359ee603e299ab422fd839fc51a494bf6349e06b9a1bf67d3d60390d0d05ec5b09c7db67c043b2dff17f83237e3fb4c57348051c531c",
    "signer": "0x569AD4a425B92a964d8e182094f4aC58C0673162",
    "userId": "577745560"
  }
}