{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "315319",
    "entityType": "User",
    "nonce": "0x431a76d59740458e503b24d1a704b47a270e0f48521d557ae48561535d1cd831",
    "signature": "0x879c2e233d9a7ba178aa944e69a82ee609beeef841f21963f167cab7fadc95b31823b8bdb79d7ac5066039bfa89d8cac5e0a9ff17d54ffc6f00b38ff160648e01c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}