{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "578849678",
    "entityType": "User",
    "nonce": "0xe8f58b4d96091fd62fe06d7d27372a2389e93da44b472fd3b68218fd0f39b347",
    "signature": "0xada152cf58665c0992ac11cc8255c1bcfc89ea461d0dfdd8073afe1f35dae42f273cb8e99731e63ab31dfc210f77cc485a459944f235e1b650b60b3b202b9d041c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}