{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0c067808d44b13e8ff30c89d4b1026d70c5bd6afa4be3ba0da79d63f470bdd6d",
    "signature": "0x9c2dba3c710fd97a2857112187d2a822f560b3245bbb28d84370a690fd66121318d2cf915740edff79eb8ec5f0fd228007c78c93b15222b3a58b81365e19a7cc1c",
    "signer": "0xb99ad2159A5e0A233D0bB633133e0D90DEdea84E",
    "userId": "297086437"
  }
}