{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "906473021",
    "entityType": "User",
    "nonce": "0x764913582ccece202cbcd71a2ea256459ad20067c068871dfe70ddfeb20f0fa0",
    "signature": "0x37fbcbada48244cb2f0f1ecdf930b1b73bd09a9e78c367146a34e66c7063486414b0d232fddc2c55f5cb0d34d00f8cca8d9c77d9b326dc9f09d29faf978363ef1b",
    "signer": "0x75387BeED3d3B040a54C3e303fF0B07Da67a9186",
    "userId": "223536026"
  }
}