{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3a39c81e8c8f3b8a2b7fce75372316edf02b42c69c314779110fd326f2b4afd2",
    "signature": "0x264ed0144f2ca1185cfc711d6da0e2e66c571c40b771f707ce7471da1a1330e957d8b7a0dae4716b2ca4094165049cc13932c03edd0a36335a956deb00d2a3131c",
    "signer": "0x14DE36ccE0D42826CFa73280f472bfEB490D9Bff",
    "userId": "648710582"
  }
}