{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "76437",
    "entityType": "User",
    "nonce": "0x0d6967f6174acd112e2a5ebd1c02875a387ac1222117ee4ce48be55a005b7359",
    "signature": "0x81a8732ed3d36f14a6c35f7128c22097e94558a498b71d237a4060a6fb1dce4830302190997035bfa916573daffa9e1c8c22811541dd6f6800a2a91b1d8b7e411b",
    "signer": "0x766Ba5816f1Cbcd9649d3b301b8F423CFF252fdb",
    "userId": "758745"
  }
}