{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "764170710",
    "entityType": "User",
    "nonce": "0x8672cfc843a3fab74b986d5e91226dafc0e47055639fcbf1680463402665da40",
    "signature": "0x32fefae81292eb1f51739ecf09bcdf07bdaca9a6a28c12b845b2a4d727bdc2a5514a2fe27c53217911c6b2a0033fd76480cd1f8f52302697be68efba24e8c3331c",
    "signer": "0x0E6Ef8dF2F401D8918d603B82ef321D94A721556",
    "userId": "648802251"
  }
}