{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "755462",
    "entityType": "User",
    "nonce": "0xb9e355a420650f13cd61d4b93f359f6bf15d1fa5aaa7fa8f9e95578530be1610",
    "signature": "0xe5b032c44ddd6e1b404efda9953940e86061ec7fd42b427f50cff82697435ca307ea808c2b132a19b5d25a3f001aa6d4f805c33cfdd8f2ef5728140b50412c8b1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}