{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2988",
    "entityType": "User",
    "nonce": "0xc4a54c14fae8aeff78b7468bc2bd9ea247a30dfd5f8a5a39466ded58b9ca0e33",
    "signature": "0x2edb30ab2dade101c6a68f07801351bf6c6c79ccc30d3f4152fdace6d0eb3de6103e0cf5c243a2046214c852d16b65d845f7a5b3ccb5948cffcb9415d1a37f131b",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}