{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134994",
    "entityType": "User",
    "nonce": "0x504a2347e5a576943bfa90af4d32e77716189f1cabce80dd7e61711eed300f2b",
    "signature": "0x940e3b5d65222c79eed70d99570fbbab30f2126fd5471bc1fd578e78728a9ada50f020d694457517a3ee1e80b18cd293b798197dfe7e9fcd57a699fde51a23911b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}