{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53389",
    "entityType": "User",
    "nonce": "0x82d72a63f8739e132c0a0e5899e1c5993a4ea9d9ace98d5ec39948857e9882b3",
    "signature": "0xbf1b8c6b4e87bad3f8e770b515ce172b357d529629efb7dadfb4cb4330ff4c084675065497afc0ebe711f275acc16fa6b08a9da9b797bd6b3f924ebbeec5e7c21b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}