{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8318dca3bff60c700057237315d2bd30276467e444f6cce839110f634964a379",
    "signature": "0xc70b2b1d5768b29d7f8350a2f89643769ddc6db93ad84ec73f14c86f860406a827c3aefec85941dd68a54b334978388640e853a1ab2f5e2e37a995ae8ef342d71b",
    "signer": "0x8B909e0dA71F8889E96568c1EaFCC43135e5C0EA",
    "userId": "199716246"
  }
}