{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8e99c6122bc11cd60694a3ebc21b62a0a82c684b843ccd06b32d8705179dcf28",
    "signature": "0xfad31d27324c2d3d8b904e978b66451c539b9928da9cbef72315f328e8edba4c026a4cc0d1426c2b771f4bc278795e29cd97b476f13ee4e54934669e17c541251b",
    "signer": "0xd860595177D2892620ff34ebCd605272C7660702",
    "userId": "796490664"
  }
}