{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120374",
    "entityType": "User",
    "nonce": "0xbbfb14effe0601fbe336a1566965906b27d92742b4206a14485d9367aa263c65",
    "signature": "0x8c70cdb0a7060145fe5ca43826bb4a927a83ca957bb10a2ae9888485a5996f58160e46b45804da9e7ed31b8911ecd2dfcf79db7dd03ca86eb0bfca10a3e2a8861c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}