{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5266a3f3572f16b0308da71b6be2fbc9980acebd71b4a56f155d6a98b31e75df",
    "signature": "0xf05f40fc51d44d0cfd3f159cb53fdb3194d6d1266c7339f2577c672b9d7f014c4c8190447617b72b600f66a0c1410ed3bd5355b55f96c2465b6e061d6f84bafa1c",
    "signer": "0xD3e2a2Aeb739263055A5ec4484257b4927578D03",
    "userId": "117667088"
  }
}