{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "557210595",
    "entityType": "User",
    "nonce": "0x7e411c12edc0b53c96514c03f713eacdf663099e96bd3dad45939e56e6dada3f",
    "signature": "0xa3684cbc7a26b87cba9d400a0801466e6be5505100f24426921e5ca5dee396104369efa66727c01986d44fd39dfa2e959e33c782f796ea85ab81d489e45f04c51b",
    "signer": "0x0D2c1331F52a98aF1Bd206E3C28062E717CA9E51",
    "userId": "597927803"
  }
}