{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xca604f5683c7f6beb8f83fbdbfdd27bf954d19f97224d0dff57c03c72414dc39",
    "signature": "0xd0c25ad52de5b243d116546c1888d9f3160bca03645292efaef396a0aa14c71017817b60994adbbfecd18e01f1d1971425a22a95c70af06ac7a7a41f8ce175af1c",
    "signer": "0xBe29616dCa5369Ec8ADA015A7BFD39aE0ed8c985",
    "userId": "601960765"
  }
}