{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74299",
    "entityType": "User",
    "nonce": "0xd08ac6ce6abf7242a9ae80587d926181d00ed5d91d58b39776e45a2f7aa3f77c",
    "signature": "0x831ffb8f87bdd066b94d7e59df586b22de0edc109314612118c3cae7e8f997be3092b18ca2f68b9c447815037af0e3aca886867de53d114d9d7efb14a7240e651c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}