{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "297896725",
    "entityType": "User",
    "nonce": "0x32e80d050cbba6c7c3dce32f65803b54d0fb0ac3bccaf7aafd3893e54c66c030",
    "signature": "0xfcd242135739cfcc68aabb4a729f576d48b95ea6b376858088e14665d0ddb96f53dac529fbb14dae6fda90571842f2f462b9b12d660605352b82860860ed26e01b",
    "signer": "0xb15e0969937058c681E67343137f40F72F50d99F",
    "userId": "790717795"
  }
}