{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "107750",
    "entityType": "User",
    "nonce": "0xe44a31146727669b2e4a18f3c50682ea43af7f46056a6ec7eb71a2491f05a7e4",
    "signature": "0xc9e16e53b0a4c6934c7f7c04b7472fc34205cbc9599cbe888ca13a2538eb1649653d9860b362d8708c8e801fbab3ab3ca7d99b0da615d0b52475a34c894366b11b",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}