{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "772682384",
    "entityType": "User",
    "nonce": "0x73e9f0a40da5971bc179f988658463ea2729b1ff93c3a247b50f4a4ceb2c38e8",
    "signature": "0xeaf1712db1f08a9a0ac2848c1338addfe846896a0dba0b4e2a10d83a6fa3fd8c2b55989f8c7ae150c962898ab323036d8d4a954381d6e42eebfc0977b25c9e191b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}