{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7215f2af06aa1bb05dcb2e632b9df71bb686f1aa4dec6a4787fd97b8383f2695",
    "signature": "0x95275683415462ab2a09a1e04c95fa4f996fed8c44bc2098828452c3d7fb04624806052005ad63e1500f890eff66307e1a77918a64a027f5587bfd44a58e74251c",
    "signer": "0x4dafC3e774A1033C5604372f17ccBDcE545f478D",
    "userId": "889450527"
  }
}