{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "257465",
    "entityType": "User",
    "nonce": "0xcf932841dc398d76d7176f53888ae94cec5f15b32e670d89ad3d98040ab80f85",
    "signature": "0xef96be78f084298bf42553e6e28937e59e900f57665b796ebd8b5d839c395914565920ed22b0e158bddf5e30eb192c1b8f081ffee6b31bdf2886bbffce62e3651b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}