{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "486688323",
    "entityType": "User",
    "nonce": "0x8fdb24fe48ab6a30470230e9580b1cefb176688a2316b857f948fe9f87c40021",
    "signature": "0x9db00e889c6b95db615f06e1532a0f1edb1d4d1d3305e96498591ad6bc53c6697d976c1615cdbcc6b532f9defad35bf90dd3ef6f9f2c9d3db332c50c7ee358141b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}