{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1be2ae4d2d5096252c406dd52a4f4512fbe325813eeb02a523160624f70899f8",
    "signature": "0xb2d00913a195addb7511b462b2e495730a352cacc03e2cde687d24dc7fadb8a6481cd70057207e77cf70d85be65e7934cbf6c80e8d1aa95a78c0dac247702eb61c",
    "signer": "0xbb3b8C270080b0DAE42411345FCDc6a00369e247",
    "userId": "690093689"
  }
}