{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "170302",
    "entityType": "User",
    "nonce": "0xb472bd8eb4e2b584c9518b04df689647b6285cc441bad738655a8d8d09efc5a0",
    "signature": "0xd6632bbbacc0e1c708fef4349e48db66939f6a84f67e887d0875820dd1f1643e0e0d0ff66d7deb2c6ccbb49117defc233ff804847f66664d0bae1b54dcd934d21b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}