{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdac8bfa5a516d01df907414b3351a275cd00fa37103c6f561aea31ab19cf5ad9",
    "signature": "0xb191a13a4f3f74385bba0f4a69675b26ef43a92a45c4a7bf66d0e961e49d390b46a07e6d8d68255a931b60b77a4803a59b9ef59228a7b2e247d3b921184225fa1c",
    "signer": "0x380358AE7f811C21774F3dEc1F4d5EDC17e6324c",
    "userId": "904019784"
  }
}