{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "217374",
    "entityType": "User",
    "nonce": "0x754d8025067527e0306b0bf203a6974512754e9ab307e5aeee2b9ebe6abe1f3a",
    "signature": "0x4f88dd0692885a85f526f647fcfad063a7effb89a0c066c4f63a8cfb073e3e452b4eccb84ab5f66bb8774c7245eaead9abc6e8e8ed0ace3063f3d925d24ea49b1c",
    "signer": "0x0E6Ef8dF2F401D8918d603B82ef321D94A721556",
    "userId": "648802251"
  }
}