{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134943",
    "entityType": "User",
    "nonce": "0x1409c5087394acd35b99223d5f046f7e338388a7e9bbf2af7862a253c093f878",
    "signature": "0x7f7d25c7b25b36a877df26f49826959f5054321a2f42383e236ed81c2cb5408f2b93b204a47dfaa1e38f3f7b15f5511c03e35bb04bfd65c8496004654ee076211c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}