{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120305",
    "entityType": "User",
    "nonce": "0x28c4d43c65d7e8753b939025d1738de5e9496a9757a7030001c7d93b49b8ab3b",
    "signature": "0x8507d0833b819aa1abe86b02f8f029c57aa38e7962f9aa679a536eb191ed464c66a7bb31ce8d67d165a67319b1baf22ca7a08118388a16ca42101cd2e0078f531c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}