{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc4dbe12a2bc3626a6e543ff6ea97e1880c4390d0b0ac6581e8e8f2f31488c3cb",
    "signature": "0x412e3f02ff8007922576166d8018eb9887316a28e64b5905e6e050fc283542021a99032c8e5a1a9a02141ca6f3972694a65e5dfa21168ac833247018ec1e80341c",
    "signer": "0xe3eBe6938038F6A1206D08516A39d7867DD26F5E",
    "userId": "967041374"
  }
}