{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "369554",
    "entityType": "User",
    "nonce": "0xc819ea31bbd1130758e944090df0c04d1deeed4dba2640efc6eec3d41731ca27",
    "signature": "0xd5f2245059e51ac362484236b3e5de09539ca6b3dd610fb8510efc2149dadaea3bbe7b79864d557a14fc49dfd4b54a7b835f672d610a068804cd48ec1a3d99a41b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}