{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "745382175",
    "entityType": "User",
    "nonce": "0x5de5e71e2d9b520e790b935321c7023cbf6b83cb1d7b037bebf008be1a0e30a3",
    "signature": "0x3ec2a28e290e0b9b40450ee423cabe3b050e7fec7abcba75bb1184c01bac91a43e36a86d302ed4b3690c9452966a9a5034b33fe5a3a54eed6af039b6a07dedf41c",
    "signer": "0x0246262E4959323EAC2FBf603C6D24352d57Fc51",
    "userId": "700531000"
  }
}