{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x375124ca6348c18c7fc3146de8f55ff963d23c43af607515c45623cb8d3aadde",
    "signature": "0xaa3d032babee7a2e5ac765d301f38c7fee9d25d91a631bffd82be6aacf79c033460593184e365a6e23c47d0e0df6d5ff274a1e42f6c525f09e03a4fc969f13ea1c",
    "signer": "0x0543DBdF9580c150eCC3eFD822D1B5c4963d3288",
    "userId": "116425983"
  }
}