{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "387518",
    "entityType": "User",
    "nonce": "0xbf8028775547c06ff58123c177b36f2500b5b1ae3bbf857b0c04b935082cde1e",
    "signature": "0xf34c35b116aa680a210a53b66fec6616c325ed360545885d58c606118619028961587eea327ed6f527951fb0cd3bf6fa7cdd6c43f908f0c78e22802f3545baeb1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}