{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "326129",
    "entityType": "User",
    "nonce": "0xc27194c05dd391d80c2b4bc5889ab28cb813352a5d63fefe25022362fd41027a",
    "signature": "0x41a8f1055b5b822a979e8af6c3f068f57d72cea062581f544672a150882dbca1549c99384f35b613cddf0403147c1e00d16865737b1a781a7fa177e67950f7a31c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}