{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "294007",
    "entityType": "User",
    "nonce": "0x65738cc1c3e6ecdd051409abfa82f00a2eb6f6abd9c67a0c5137ad44ebcc5cd0",
    "signature": "0xb8c16d36a299e012b4af454125186f4d3bdc05834f67fcab9239a2d7e577569731bcdcd43695c6c52317f3babd4be03a73a4b7f26d3d38fc4fcb6dd2bff030e81b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}