{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "963075181",
    "entityType": "User",
    "nonce": "0xa7c07893cc6d71897d176f60ab3b39d9e2efc2bd528be32ff61ff9a957f4c5f8",
    "signature": "0x2512087b5ea46665f589a3a439dae5bf5dcf602fd8e95f0a45c96333710905336d79cf6253432ef1bc05da14f94d12d8e5efad3f8b22d878dcccf8d4d92f58d51c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}