{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1051884",
    "entityType": "User",
    "nonce": "0x91bb3c26fda0cb6396d307717d777ff7d4e0cdb6db1a7bbb6f45e310abfc6edd",
    "signature": "0x54870a1e947309eba4f7eb0c83180df58d1fd6eb3ee8e12f08fdccf894afb42942bd20deab76447f67eecb47db2922b84dac7b63e857f995a585abadac8976ab1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}