{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "855989195",
    "entityType": "User",
    "nonce": "0x9156f199c59cd265b1da43bf8657027014a70129324ec97433f4b9e7c74138f3",
    "signature": "0xa61df71f5b585ec8e04b39644aee476598332a0e46aa18191f769cbb160345ff4ace2b0fdc5231b830dfb99bcc998a08b0979ff77a18bc0d716886405f1916d51b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}