{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xecd223391eebee05ab758175e1a6cfdb45496b3f9c31df771a3e07f442550c94",
    "signature": "0xbc7851b8dbc171a64394ea7b4c6969845a15341ad09e201d6c0dbd95b899f32909a1cb45c306a89ecafdeb3071157089fe9f8bb4f1e61509efa0ff2a9d7673a01c",
    "signer": "0xa00616Dd400f07C9FBbcE3566bDc48BF1518Cf01",
    "userId": "833138557"
  }
}