{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "783256138",
    "entityType": "User",
    "nonce": "0xb2ff373f24461ba6c02124bd695a4e24703ca029b2749b81c23977de5154f187",
    "signature": "0xec6163a958c58700929408145d040df7666decdeacd57dd9587620fe95117df07750f4c23ba7f225070a8be492b4cb2e3bf37c55d4c9b63b814441b083da70ee1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}