{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "188839",
    "entityType": "User",
    "nonce": "0xfcc3e6a766d74c97b62e68bf00c157ce07b97c6505c7e68cf3323a4ff863e74f",
    "signature": "0xd47a3787864f943c8fbcbb67f38f61e0cba855b4e8e5953d7a708b8c986d773118f17602f5b248d301bcca3b1ca05bd20cf78bb0c35f740c05b410c8512d88cd1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}