{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951644728",
    "entityType": "User",
    "nonce": "0xb1b697369825651167e6d30281ded26d569b309b4f2e313becfb572b067e3cad",
    "signature": "0xd90cc85b78c823f5c6da3510b7469338921f6ba47017382a1ad39e05968b9e0562ed7e4fe7da32515b08adeaa341fe5634b43b033dde34422f6d5433a2e00d5f1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}