{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "772682384",
    "entityType": "User",
    "nonce": "0x2b895add2d19f2265783429ed5838a1e252e27bc1ddc7bdc5debb142f4be2a82",
    "signature": "0x5678e37b7699e532f3f6b8110dcbadf09c82a73328414434e2ccae800382d2e24430a9d89679e6bb2205161f459ba6578d1e5b29f84343a40cf71d4ed0949d621c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}