{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "148483",
    "entityType": "User",
    "nonce": "0x9b31236abd572e2349ac5c116f15be2cca4864234cfd58df4bfc9ab7de2877ce",
    "signature": "0x677df883a6b5da8175c6f9241a6fec8b20040872df4a37bc617879453ba96fbc7b8016c87702cf2b1254f79d860262d9fc25192dec3eee1e4673d971b5d55e4d1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}