{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "970864443",
    "entityType": "User",
    "nonce": "0x479c875e8e26663ab0a0cdb22657740adff1e823fcb48c106d3a3d4d1d061849",
    "signature": "0x60f23448f6a190cccc9e0ad51e5c66ebb4faf138193def8b2763589e30b175f50b74682b53877c33bf4581714951edf052f8b1321ce8131d23540fe01477a9f21c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}